diff --git a/.circleci/config.yml b/.circleci/config.yml
index 6b43c90..04ae00e 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -7,20 +7,20 @@ workflows:
   build:
     jobs:
       - elixir/build_test:
-          cache-version: 3
+          cache-version: 6
           filters: &filters
             tags:
               only: /v.*/
       - elixir/test:
-          cache-version: 3
+          cache-version: 6
           filters:
             <<: *filters
       - elixir/lint:
-          cache-version: 3
+          cache-version: 6
           filters:
             <<: *filters
       - elixir/hex_publish:
-          cache-version: 3
+          cache-version: 6
           requires:
             - elixir/build_test
             - elixir/test
diff --git a/lib/boombox/mp4.ex b/lib/boombox/mp4.ex
index 60cde8d..db5da1c 100644
--- a/lib/boombox/mp4.ex
+++ b/lib/boombox/mp4.ex
@@ -22,8 +22,8 @@ defmodule Boombox.MP4 do
           spec =
             get_child(:mp4_demuxer)
             |> via_out(Pad.ref(:output, id))
-            |> child(Membrane.AAC.Parser)
-            |> child(:aac_decoder, Membrane.AAC.FDK.Decoder)
+            |> child(:mp4_in_aac_parser, Membrane.AAC.Parser)
+            |> child(:mp4_in_aac_decoder, Membrane.AAC.FDK.Decoder)
 
           {:audio, spec}
 
@@ -49,14 +49,17 @@ defmodule Boombox.MP4 do
         Enum.map(track_builders, fn
           {:audio, builder} ->
             builder
-            |> child(Membrane.AAC.FDK.Encoder)
-            |> child(%Membrane.AAC.Parser{out_encapsulation: :none, output_config: :esds})
+            |> child(:mp4_out_aac_encoder, Membrane.AAC.FDK.Encoder)
+            |> child(:mp4_out_aac_parser, %Membrane.AAC.Parser{
+              out_encapsulation: :none,
+              output_config: :esds
+            })
             |> via_in(Pad.ref(:input, :audio))
             |> get_child(:mp4_muxer)
 
           {:video, builder} ->
             builder
-            |> child(%Membrane.H264.Parser{output_stream_structure: :avc3})
+            |> child(:mp4_out_h264_parser, %Membrane.H264.Parser{output_stream_structure: :avc3})
             |> via_in(Pad.ref(:input, :video))
             |> get_child(:mp4_muxer)
         end)
diff --git a/lib/boombox/pipeline.ex b/lib/boombox/pipeline.ex
index 2100f19..6b414aa 100644
--- a/lib/boombox/pipeline.ex
+++ b/lib/boombox/pipeline.ex
@@ -22,6 +22,8 @@ defmodule Boombox.Pipeline do
 
   use Membrane.Pipeline
 
+  require Membrane.Logger
+
   @type track_builders :: %{
           optional(:audio) => Membrane.ChildrenSpec.t(),
           optional(:video) => Membrane.ChildrenSpec.t()
@@ -115,7 +117,12 @@ defmodule Boombox.Pipeline do
 
   @impl true
   def handle_child_notification({:new_tracks, tracks}, :webrtc_output, ctx, state) do
-    %{status: :awaiting_output_link} = state
+    unless state.status == :awaiting_output_link do
+      raise """
+      Invalid status: #{inspect(state.status)}, expected :awaiting_output_link. \
+      This is probably a bug in Boombox.
+      """
+    end
 
     Boombox.WebRTC.handle_output_tracks_negotiated(
       state.track_builders,
@@ -140,7 +147,11 @@ defmodule Boombox.Pipeline do
   end
 
   @impl true
-  def handle_child_notification(_notification, _child, _ctx, state) do
+  def handle_child_notification(notification, child, _ctx, state) do
+    Membrane.Logger.debug_verbose(
+      "Ignoring notification #{inspect(notification)} from child #{inspect(child)}"
+    )
+
     {[], state}
   end
 
diff --git a/lib/boombox/rtmp.ex b/lib/boombox/rtmp.ex
index 6577ee9..c474a5e 100644
--- a/lib/boombox/rtmp.ex
+++ b/lib/boombox/rtmp.ex
@@ -42,12 +42,12 @@ defmodule Boombox.RTMP do
     spec = [
       child(:rtmp_source, %Membrane.RTMP.SourceBin{client_ref: client_ref})
       |> via_out(:audio)
-      |> child(Membrane.AAC.Parser)
-      |> child(:aac_decoder, Membrane.AAC.FDK.Decoder)
+      |> child(:rtmp_in_aac_parser, Membrane.AAC.Parser)
+      |> child(:rtmp_in_aac_decoder, Membrane.AAC.FDK.Decoder)
     ]
 
     track_builders = %{
-      audio: get_child(:aac_decoder),
+      audio: get_child(:rtmp_in_aac_decoder),
       video: get_child(:rtmp_source) |> via_out(:video)
     }
 
diff --git a/lib/boombox/webrtc.ex b/lib/boombox/webrtc.ex
index 6151df4..9d03d9c 100644
--- a/lib/boombox/webrtc.ex
+++ b/lib/boombox/webrtc.ex
@@ -26,7 +26,7 @@ defmodule Boombox.WebRTC do
           spec =
             get_child(:webrtc_input)
             |> via_out(Pad.ref(:output, id))
-            |> child(:opus_decoder, Membrane.Opus.Decoder)
+            |> child(:webrtc_in_opus_decoder, Membrane.Opus.Decoder)
 
           {:audio, spec}
 
@@ -74,22 +74,22 @@ defmodule Boombox.WebRTC do
       Enum.map(track_builders, fn
         {:audio, builder} ->
           builder
-          |> child(%Membrane.FFmpeg.SWResample.Converter{
+          |> child(:webrtc_out_resampler, %Membrane.FFmpeg.SWResample.Converter{
             output_stream_format: %Membrane.RawAudio{
               sample_format: :s16le,
               sample_rate: 48_000,
               channels: 2
             }
           })
-          |> child(Membrane.Opus.Encoder)
-          |> child(Membrane.Realtimer)
+          |> child(:webrtc_out_opus_encoder, Membrane.Opus.Encoder)
+          |> child(:webrtc_out_audio_realtimer, Membrane.Realtimer)
           |> via_in(Pad.ref(:input, tracks.audio), options: [kind: :audio])
           |> get_child(:webrtc_output)
 
         {:video, builder} ->
           builder
-          |> child(Membrane.Realtimer)
-          |> child(%Membrane.H264.Parser{
+          |> child(:webrtc_out_video_realtimer, Membrane.Realtimer)
+          |> child(:webrtc_out_h264_parser, %Membrane.H264.Parser{
             output_stream_structure: :annexb,
             output_alignment: :nalu
           })
diff --git a/mix.exs b/mix.exs
index f630cab..aad5ecf 100644
--- a/mix.exs
+++ b/mix.exs
@@ -36,18 +36,17 @@ defmodule Boombox.Mixfile do
 
   defp deps do
     [
-      {:membrane_core, "~> 1.0"},
-      {:membrane_webrtc_plugin, "~> 0.20.0"},
-      {:membrane_opus_plugin, ">= 0.0.0"},
-      {:membrane_aac_plugin, ">= 0.0.0"},
-      {:membrane_aac_fdk_plugin, ">= 0.0.0"},
-      {:membrane_h26x_plugin, ">= 0.0.0"},
-      {:membrane_h264_ffmpeg_plugin, ">= 0.0.0"},
+      {:membrane_core, "~> 1.1"},
+      {:membrane_webrtc_plugin, "~> 0.21.0"},
+      {:membrane_opus_plugin, "~> 0.20.0"},
+      {:membrane_aac_plugin, "~> 0.18.0"},
+      {:membrane_aac_fdk_plugin, "~> 0.18.0"},
+      {:membrane_h26x_plugin, "~> 0.10.0"},
+      {:membrane_h264_ffmpeg_plugin, "~> 0.32.0"},
       {:membrane_mp4_plugin, github: "membraneframework/membrane_mp4_plugin", branch: "wip-avc3"},
-      {:membrane_realtimer_plugin, ">= 0.0.0"},
-      # {:membrane_rtmp_plugin, ">= 0.0.0"},
+      {:membrane_realtimer_plugin, "~> 0.9.0"},
       {:membrane_rtmp_plugin, github: "membraneframework/membrane_rtmp_plugin"},
-      {:membrane_ffmpeg_swresample_plugin, ">= 0.0.0"},
+      {:membrane_ffmpeg_swresample_plugin, "~> 0.20.0"},
       {:ex_doc, ">= 0.0.0", only: :dev, runtime: false},
       {:dialyxir, ">= 0.0.0", only: :dev, runtime: false},
       {:credo, ">= 0.0.0", only: :dev, runtime: false}
diff --git a/mix.lock b/mix.lock
index f89824b..c3c14ae 100644
--- a/mix.lock
+++ b/mix.lock
@@ -1,5 +1,5 @@
 %{
-  "bandit": {:hex, :bandit, "1.5.5", "df28f1c41f745401fe9e85a6882033f5f3442ab6d30c8a2948554062a4ab56e0", [:mix], [{:hpax, "~> 0.2.0", [hex: :hpax, repo: "hexpm", optional: false]}, {:plug, "~> 1.14", [hex: :plug, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}, {:thousand_island, "~> 1.0", [hex: :thousand_island, repo: "hexpm", optional: false]}, {:websock, "~> 0.5", [hex: :websock, repo: "hexpm", optional: false]}], "hexpm", "f21579a29ea4bc08440343b2b5f16f7cddf2fea5725d31b72cf973ec729079e1"},
+  "bandit": {:hex, :bandit, "1.5.7", "6856b1e1df4f2b0cb3df1377eab7891bec2da6a7fd69dc78594ad3e152363a50", [:mix], [{:hpax, "~> 1.0.0", [hex: :hpax, repo: "hexpm", optional: false]}, {:plug, "~> 1.14", [hex: :plug, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}, {:thousand_island, "~> 1.0", [hex: :thousand_island, repo: "hexpm", optional: false]}, {:websock, "~> 0.5", [hex: :websock, repo: "hexpm", optional: false]}], "hexpm", "f2dd92ae87d2cbea2fa9aa1652db157b6cba6c405cb44d4f6dd87abba41371cd"},
   "bimap": {:hex, :bimap, "1.3.0", "3ea4832e58dc83a9b5b407c6731e7bae87458aa618e6d11d8e12114a17afa4b3", [:mix], [], "hexpm", "bf5a2b078528465aa705f405a5c638becd63e41d280ada41e0f77e6d255a10b4"},
   "bunch": {:hex, :bunch, "1.6.1", "5393d827a64d5f846092703441ea50e65bc09f37fd8e320878f13e63d410aec7", [:mix], [], "hexpm", "286cc3add551628b30605efbe2fca4e38cc1bea89bcd0a1a7226920b3364fe4a"},
   "bunch_native": {:hex, :bunch_native, "0.5.0", "8ac1536789a597599c10b652e0b526d8833348c19e4739a0759a2bedfd924e63", [:mix], [{:bundlex, "~> 1.0", [hex: :bundlex, repo: "hexpm", optional: false]}], "hexpm", "24190c760e32b23b36edeb2dc4852515c7c5b3b8675b1a864e0715bdd1c8f80d"},
@@ -18,17 +18,17 @@
   "ex_dtls": {:hex, :ex_dtls, "0.15.2", "6c8c0f8eb67525216551bd3e0322ab33c9d851d56ef3e065efab4fd277a8fbb9", [:mix], [{:unifex, "~> 1.0", [hex: :unifex, repo: "hexpm", optional: false]}], "hexpm", "6b852bc926bbdc9c1b9c4ecc6cfc73a89d4e106042802cefea2c1503072a9f2a"},
   "ex_ice": {:hex, :ex_ice, "0.7.1", "3ad14f7281ece304dfee227e332b8a67d93d5857602a8a4300a826c250af136e", [:mix], [{:elixir_uuid, "~> 1.0", [hex: :elixir_uuid, repo: "hexpm", optional: false]}, {:ex_stun, "~> 0.2.0", [hex: :ex_stun, repo: "hexpm", optional: false]}, {:ex_turn, "~> 0.1.0", [hex: :ex_turn, repo: "hexpm", optional: false]}], "hexpm", "78e6bc4abb5294dcf0a474d0a91e78a829916291d846a0e255867dc5db8733e7"},
   "ex_libsrtp": {:hex, :ex_libsrtp, "0.7.2", "211bd89c08026943ce71f3e2c0231795b99cee748808ed3ae7b97cd8d2450b6b", [:mix], [{:bunch, "~> 1.6", [hex: :bunch, repo: "hexpm", optional: false]}, {:bundlex, "~> 1.3", [hex: :bundlex, repo: "hexpm", optional: false]}, {:membrane_precompiled_dependency_provider, "~> 0.1.0", [hex: :membrane_precompiled_dependency_provider, repo: "hexpm", optional: false]}, {:unifex, "~> 1.1", [hex: :unifex, repo: "hexpm", optional: false]}], "hexpm", "2e20645d0d739a4ecdcf8d4810a0c198120c8a2f617f2b75b2e2e704d59f492a"},
-  "ex_rtcp": {:hex, :ex_rtcp, "0.3.0", "c61d6aba0fefc0af92a4fa214be13cc34580b55a0a65c1d4ac74c88e4baae015", [:mix], [], "hexpm", "48a5667779dd97910e1e5dc7d3938881c0ee85cf5023799be4ede9526f960bd2"},
+  "ex_rtcp": {:hex, :ex_rtcp, "0.4.0", "f9e515462a9581798ff6413583a25174cfd2101c94a2ebee871cca7639886f0a", [:mix], [], "hexpm", "28956602cf210d692fcdaf3f60ca49681634e1deb28ace41246aee61ee22dc3b"},
   "ex_rtp": {:hex, :ex_rtp, "0.4.0", "1f1b5c1440a904706011e3afbb41741f5da309ce251cb986690ce9fd82636658", [:mix], [], "hexpm", "0f72d80d5953a62057270040f0f1ee6f955c08eeae82ac659c038001d7d5a790"},
-  "ex_sdp": {:hex, :ex_sdp, "0.15.0", "53815fb5b5e4fae0f3b26de90f372446bb8e0eed62a3cc20394d3c29519698be", [:mix], [{:bunch, "~> 1.3", [hex: :bunch, repo: "hexpm", optional: false]}, {:elixir_uuid, "~> 1.2", [hex: :elixir_uuid, repo: "hexpm", optional: false]}], "hexpm", "d3f23596b73e7057521ff0f0d55b1189c6320a2f04388aa3a80a0aa97ffb379f"},
+  "ex_sdp": {:hex, :ex_sdp, "0.17.0", "4c50e7814f01f149c0ccf258fba8428f8567dffecf1c416ec3f6aaaac607a161", [:mix], [{:bunch, "~> 1.3", [hex: :bunch, repo: "hexpm", optional: false]}, {:elixir_uuid, "~> 1.2", [hex: :elixir_uuid, repo: "hexpm", optional: false]}], "hexpm", "c7fe0625902be2a835b5fe6834a189f7db7639d2625c8e9d8b3564e6d704145f"},
   "ex_stun": {:hex, :ex_stun, "0.2.0", "feb1fc7db0356406655b2a617805e6c712b93308c8ea2bf0ba1197b1f0866deb", [:mix], [], "hexpm", "1e01ba8290082ccbf37acaa5190d1f69b51edd6de2026a8d6d51368b29d115d0"},
   "ex_turn": {:hex, :ex_turn, "0.1.0", "177405aadf3d754567d0d37cf881a83f9cacf8f45314d188633b04c4a9e7c1ec", [:mix], [{:ex_stun, "~> 0.2.0", [hex: :ex_stun, repo: "hexpm", optional: false]}], "hexpm", "d677737fb7d45274d5dac19fe3c26b9038b6effbc0a6b3e7417bccc76b6d1cd3"},
-  "ex_webrtc": {:hex, :ex_webrtc, "0.2.0", "a6bf363de790de3d498ac4b5c90ddce7ec32f8715435302fd758bda0300729f6", [:mix], [{:crc, "~> 0.10", [hex: :crc, repo: "hexpm", optional: false]}, {:ex_dtls, "~> 0.15.0", [hex: :ex_dtls, repo: "hexpm", optional: false]}, {:ex_ice, "~> 0.7.0", [hex: :ex_ice, repo: "hexpm", optional: false]}, {:ex_libsrtp, "~> 0.7.1", [hex: :ex_libsrtp, repo: "hexpm", optional: false]}, {:ex_rtcp, "~> 0.3.0", [hex: :ex_rtcp, repo: "hexpm", optional: false]}, {:ex_rtp, "~> 0.4.0", [hex: :ex_rtp, repo: "hexpm", optional: false]}, {:ex_sdp, "~> 0.15.0", [hex: :ex_sdp, repo: "hexpm", optional: false]}], "hexpm", "a18ce6336c3c75be5222bce5e19e9a62ac86536adfa576603027ab6b57855315"},
+  "ex_webrtc": {:hex, :ex_webrtc, "0.3.0", "283f5b31d539f65238596793aabcefe32d221618ceb751ae68951712a486cac2", [:mix], [{:crc, "~> 0.10", [hex: :crc, repo: "hexpm", optional: false]}, {:ex_dtls, "~> 0.15.0", [hex: :ex_dtls, repo: "hexpm", optional: false]}, {:ex_ice, "~> 0.7.0", [hex: :ex_ice, repo: "hexpm", optional: false]}, {:ex_libsrtp, "~> 0.7.1", [hex: :ex_libsrtp, repo: "hexpm", optional: false]}, {:ex_rtcp, "~> 0.4.0", [hex: :ex_rtcp, repo: "hexpm", optional: false]}, {:ex_rtp, "~> 0.4.0", [hex: :ex_rtp, repo: "hexpm", optional: false]}, {:ex_sdp, "~> 0.17.0", [hex: :ex_sdp, repo: "hexpm", optional: false]}], "hexpm", "a8a4f38cdcacae170615d6abb83d8c42220b6ac0133d84b900f4994d5eff7143"},
   "file_system": {:hex, :file_system, "1.0.0", "b689cc7dcee665f774de94b5a832e578bd7963c8e637ef940cd44327db7de2cd", [:mix], [], "hexpm", "6752092d66aec5a10e662aefeed8ddb9531d79db0bc145bb8c40325ca1d8536d"},
   "finch": {:hex, :finch, "0.18.0", "944ac7d34d0bd2ac8998f79f7a811b21d87d911e77a786bc5810adb75632ada4", [:mix], [{:castore, "~> 0.1 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: false]}, {:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:mint, "~> 1.3", [hex: :mint, repo: "hexpm", optional: false]}, {:nimble_options, "~> 0.4 or ~> 1.0", [hex: :nimble_options, repo: "hexpm", optional: false]}, {:nimble_pool, "~> 0.2.6 or ~> 1.0", [hex: :nimble_pool, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "69f5045b042e531e53edc2574f15e25e735b522c37e2ddb766e15b979e03aa65"},
   "heap": {:hex, :heap, "2.0.2", "d98cb178286cfeb5edbcf17785e2d20af73ca57b5a2cf4af584118afbcf917eb", [:mix], [], "hexpm", "ba9ea2fe99eb4bcbd9a8a28eaf71cbcac449ca1d8e71731596aace9028c9d429"},
-  "hpax": {:hex, :hpax, "0.2.0", "5a58219adcb75977b2edce5eb22051de9362f08236220c9e859a47111c194ff5", [:mix], [], "hexpm", "bea06558cdae85bed075e6c036993d43cd54d447f76d8190a8db0dc5893fa2f1"},
-  "jason": {:hex, :jason, "1.4.3", "d3f984eeb96fe53b85d20e0b049f03e57d075b5acda3ac8d465c969a2536c17b", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "9a90e868927f7c777689baa16d86f4d0e086d968db5c05d917ccff6d443e58a3"},
+  "hpax": {:hex, :hpax, "1.0.0", "28dcf54509fe2152a3d040e4e3df5b265dcb6cb532029ecbacf4ce52caea3fd2", [:mix], [], "hexpm", "7f1314731d711e2ca5fdc7fd361296593fc2542570b3105595bb0bc6d0fad601"},
+  "jason": {:hex, :jason, "1.4.4", "b9226785a9aa77b6857ca22832cffa5d5011a667207eb2a0ad56adb5db443b8a", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "c5eb0cab91f094599f94d55bc63409236a8ec69a21a67814529e8d5f6cc90b3b"},
   "logger_backends": {:hex, :logger_backends, "1.0.0", "09c4fad6202e08cb0fbd37f328282f16539aca380f512523ce9472b28edc6bdf", [:mix], [], "hexpm", "1faceb3e7ec3ef66a8f5746c5afd020e63996df6fd4eb8cdb789e5665ae6c9ce"},
   "makeup": {:hex, :makeup, "1.1.2", "9ba8837913bdf757787e71c1581c21f9d2455f4dd04cfca785c70bbfff1a76a3", [:mix], [{:nimble_parsec, "~> 1.2.2 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "cce1566b81fbcbd21eca8ffe808f33b221f9eee2cbc7a1706fc3da9ff18e6cac"},
   "makeup_elixir": {:hex, :makeup_elixir, "0.16.2", "627e84b8e8bf22e60a2579dad15067c755531fea049ae26ef1020cad58fe9578", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.2.3 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "41193978704763f6bbe6cc2758b84909e62984c7752b3784bd3c218bb341706b"},
@@ -59,12 +59,12 @@
   "membrane_rtp_format": {:hex, :membrane_rtp_format, "0.8.0", "828924bbd27efcf85b2015ae781e824c4a9928f0a7dc132abc66817b2c6edfc4", [:mix], [{:membrane_core, "~> 1.0", [hex: :membrane_core, repo: "hexpm", optional: false]}], "hexpm", "bc75d2a649dfaef6df563212fbb9f9f62eebc871393692f9dae8d289bd4f94bb"},
   "membrane_rtp_h264_plugin": {:hex, :membrane_rtp_h264_plugin, "0.19.2", "de3eeaf35052f9f709d469fa7630d9ecc8f5787019f7072516eae1fd881bc792", [:mix], [{:bunch, "~> 1.5", [hex: :bunch, repo: "hexpm", optional: false]}, {:membrane_core, "~> 1.0", [hex: :membrane_core, repo: "hexpm", optional: false]}, {:membrane_h264_format, "~> 0.6.0", [hex: :membrane_h264_format, repo: "hexpm", optional: false]}, {:membrane_rtp_format, "~> 0.8.0", [hex: :membrane_rtp_format, repo: "hexpm", optional: false]}], "hexpm", "d298e9cd471ab3601366c48ca0fec84135966707500152bbfcf3f968700647ae"},
   "membrane_rtp_opus_plugin": {:hex, :membrane_rtp_opus_plugin, "0.9.0", "ae76421faa04697a4af76a55b6c5e675dea61b611d29d8201098783d42863af7", [:mix], [{:membrane_core, "~> 1.0", [hex: :membrane_core, repo: "hexpm", optional: false]}, {:membrane_opus_format, "~> 0.3.0", [hex: :membrane_opus_format, repo: "hexpm", optional: false]}, {:membrane_rtp_format, "~> 0.8.0", [hex: :membrane_rtp_format, repo: "hexpm", optional: false]}], "hexpm", "58f095d2978daf999d87c1c016007cb7d99434208486331ab5045e77f5be9dcc"},
-  "membrane_rtp_plugin": {:hex, :membrane_rtp_plugin, "0.27.1", "bee67c272f2ba252a98e302c251dfa04fa4e061f154e6112f154d5eb58d6b199", [:mix], [{:bimap, "~> 1.2", [hex: :bimap, repo: "hexpm", optional: false]}, {:bunch, "~> 1.5", [hex: :bunch, repo: "hexpm", optional: false]}, {:ex_libsrtp, "~> 0.6.0 or ~> 0.7.0", [hex: :ex_libsrtp, repo: "hexpm", optional: true]}, {:heap, "~> 2.0.2", [hex: :heap, repo: "hexpm", optional: false]}, {:membrane_core, "~> 1.0", [hex: :membrane_core, repo: "hexpm", optional: false]}, {:membrane_funnel_plugin, "~> 0.9.0", [hex: :membrane_funnel_plugin, repo: "hexpm", optional: false]}, {:membrane_rtp_format, "~> 0.8.0", [hex: :membrane_rtp_format, repo: "hexpm", optional: false]}, {:membrane_rtsp, "~> 0.6.0", [hex: :membrane_rtsp, repo: "hexpm", optional: false]}, {:membrane_telemetry_metrics, "~> 0.1.0", [hex: :membrane_telemetry_metrics, repo: "hexpm", optional: false]}, {:qex, "~> 0.5.1", [hex: :qex, repo: "hexpm", optional: false]}], "hexpm", "61410fa44b71d6bc4c31cbb2c832417bc71f5f2bf9a29337536b12ec089614b5"},
-  "membrane_rtp_vp8_plugin": {:hex, :membrane_rtp_vp8_plugin, "0.9.0", "b45d597d3612f62faf734e9bc96c8fb4f4dc480ae76efb86ef099fa81036d7b5", [:mix], [{:membrane_core, "~> 1.0", [hex: :membrane_core, repo: "hexpm", optional: false]}, {:membrane_rtp_format, "~> 0.8.0", [hex: :membrane_rtp_format, repo: "hexpm", optional: false]}, {:membrane_vp8_format, "~> 0.4.0", [hex: :membrane_vp8_format, repo: "hexpm", optional: false]}], "hexpm", "2e8a48170d296678426e2a3a0bd45a27308aa4608ffc374f3968495187e8666b"},
+  "membrane_rtp_plugin": {:hex, :membrane_rtp_plugin, "0.29.0", "0277310eb599b8e6de9e0b864807f23b3b245865e39a28f0cbab695d1f2c157e", [:mix], [{:bimap, "~> 1.2", [hex: :bimap, repo: "hexpm", optional: false]}, {:bunch, "~> 1.5", [hex: :bunch, repo: "hexpm", optional: false]}, {:ex_libsrtp, "~> 0.6.0 or ~> 0.7.0", [hex: :ex_libsrtp, repo: "hexpm", optional: true]}, {:heap, "~> 2.0.2", [hex: :heap, repo: "hexpm", optional: false]}, {:membrane_core, "~> 1.0", [hex: :membrane_core, repo: "hexpm", optional: false]}, {:membrane_funnel_plugin, "~> 0.9.0", [hex: :membrane_funnel_plugin, repo: "hexpm", optional: false]}, {:membrane_rtp_format, "~> 0.8.0", [hex: :membrane_rtp_format, repo: "hexpm", optional: false]}, {:membrane_telemetry_metrics, "~> 0.1.0", [hex: :membrane_telemetry_metrics, repo: "hexpm", optional: false]}, {:qex, "~> 0.5.1", [hex: :qex, repo: "hexpm", optional: false]}], "hexpm", "1b3fd808114e06332b6a4e000238998a9188d1ef625c414ca3239aee70f0775d"},
+  "membrane_rtp_vp8_plugin": {:hex, :membrane_rtp_vp8_plugin, "0.9.1", "9e8a74d764730a23382ba862a238963c9639b4c6963238caeb6fe2449a66add8", [:mix], [{:membrane_core, "~> 1.0", [hex: :membrane_core, repo: "hexpm", optional: false]}, {:membrane_rtp_format, "~> 0.8.0", [hex: :membrane_rtp_format, repo: "hexpm", optional: false]}, {:membrane_vp8_format, "~> 0.4.0", [hex: :membrane_vp8_format, repo: "hexpm", optional: false]}], "hexpm", "704856eb2734bb6ea5cc47242c241de45debb5724a81cffb344bacda9867fe98"},
   "membrane_rtsp": {:hex, :membrane_rtsp, "0.6.2", "782050a1dd604721647c984741c85ed0b6eaf1b0940fbdaab459a267c6dca71c", [:mix], [{:bunch, "~> 1.6", [hex: :bunch, repo: "hexpm", optional: false]}, {:ex_sdp, "~> 0.15.0", [hex: :ex_sdp, repo: "hexpm", optional: false]}, {:mockery, "~> 2.3", [hex: :mockery, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.4.0", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "d2f9aae6d81aeb6df35d2f45f2f99414473e5bf978b554930a25c6fb89311e80"},
   "membrane_telemetry_metrics": {:hex, :membrane_telemetry_metrics, "0.1.0", "cb93d28356b436b0597736c3e4153738d82d2a14ff547f831df7e9051e54fc06", [:mix], [{:telemetry, "~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}, {:telemetry_metrics, "~> 0.6.1", [hex: :telemetry_metrics, repo: "hexpm", optional: false]}], "hexpm", "aba28dc8311f70ced95d984509be930fac55857d2d18bffcf768815e627be3f0"},
   "membrane_vp8_format": {:hex, :membrane_vp8_format, "0.4.0", "6c29ec67479edfbab27b11266dc92f18f3baf4421262c5c31af348c33e5b92c7", [:mix], [], "hexpm", "8bb005ede61db8fcb3535a883f32168b251c2dfd1109197c8c3b39ce28ed08e2"},
-  "membrane_webrtc_plugin": {:hex, :membrane_webrtc_plugin, "0.20.0", "4d44de5382a35c13a1816f604c314115c0ec0b2def6dfe58d2c93521050e2fa0", [:mix], [{:bandit, "~> 1.2", [hex: :bandit, repo: "hexpm", optional: false]}, {:ex_webrtc, "~> 0.2.0", [hex: :ex_webrtc, repo: "hexpm", optional: false]}, {:membrane_core, "~> 1.0", [hex: :membrane_core, repo: "hexpm", optional: false]}, {:membrane_rtp_h264_plugin, "~> 0.19.0", [hex: :membrane_rtp_h264_plugin, repo: "hexpm", optional: false]}, {:membrane_rtp_opus_plugin, "~> 0.9.0", [hex: :membrane_rtp_opus_plugin, repo: "hexpm", optional: false]}, {:membrane_rtp_plugin, "~> 0.27.1", [hex: :membrane_rtp_plugin, repo: "hexpm", optional: false]}, {:membrane_rtp_vp8_plugin, "~> 0.9.0", [hex: :membrane_rtp_vp8_plugin, repo: "hexpm", optional: false]}, {:websock_adapter, "~> 0.5.0", [hex: :websock_adapter, repo: "hexpm", optional: false]}], "hexpm", "9536a2ad0290b60184b6b21c013dc50a2f702280ae1e64f1298723f90aa67377"},
+  "membrane_webrtc_plugin": {:hex, :membrane_webrtc_plugin, "0.21.0", "0d47a6ffe3eb18abf43e9f6d089a409120ecd5cff43095d065fbb9e1c038f79c", [:mix], [{:bandit, "~> 1.2", [hex: :bandit, repo: "hexpm", optional: false]}, {:ex_webrtc, "~> 0.3.0", [hex: :ex_webrtc, repo: "hexpm", optional: false]}, {:membrane_core, "~> 1.0", [hex: :membrane_core, repo: "hexpm", optional: false]}, {:membrane_rtp_h264_plugin, "~> 0.19.0", [hex: :membrane_rtp_h264_plugin, repo: "hexpm", optional: false]}, {:membrane_rtp_opus_plugin, "~> 0.9.0", [hex: :membrane_rtp_opus_plugin, repo: "hexpm", optional: false]}, {:membrane_rtp_plugin, "~> 0.29.0", [hex: :membrane_rtp_plugin, repo: "hexpm", optional: false]}, {:membrane_rtp_vp8_plugin, "~> 0.9.1", [hex: :membrane_rtp_vp8_plugin, repo: "hexpm", optional: false]}, {:websock_adapter, "~> 0.5.0", [hex: :websock_adapter, repo: "hexpm", optional: false]}], "hexpm", "39d383eadb1b1ce10975ac8505012e901c8961e6f5a65577ff0fbf03b7bc8fc7"},
   "mime": {:hex, :mime, "2.0.6", "8f18486773d9b15f95f4f4f1e39b710045fa1de891fada4516559967276e4dc2", [:mix], [], "hexpm", "c9945363a6b26d747389aac3643f8e0e09d30499a138ad64fe8fd1d13d9b153e"},
   "mint": {:hex, :mint, "1.6.2", "af6d97a4051eee4f05b5500671d47c3a67dac7386045d87a904126fd4bbcea2e", [:mix], [{:castore, "~> 0.1.0 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:hpax, "~> 0.1.1 or ~> 0.2.0 or ~> 1.0", [hex: :hpax, repo: "hexpm", optional: false]}], "hexpm", "5ee441dffc1892f1ae59127f74afe8fd82fda6587794278d924e4d90ea3d63f9"},
   "mockery": {:hex, :mockery, "2.3.3", "3dba87bd0422a513e6af6e0d811383f38f82ac6be5d3d285a5fcca9c299bd0ac", [:mix], [], "hexpm", "17282be00613286254298117cd25e607a39f15ac03b41c631f60e52f5b5ec974"},
@@ -76,7 +76,7 @@
   "plug_crypto": {:hex, :plug_crypto, "2.1.0", "f44309c2b06d249c27c8d3f65cfe08158ade08418cf540fd4f72d4d6863abb7b", [:mix], [], "hexpm", "131216a4b030b8f8ce0f26038bc4421ae60e4bb95c5cf5395e1421437824c4fa"},
   "qex": {:hex, :qex, "0.5.1", "0d82c0f008551d24fffb99d97f8299afcb8ea9cf99582b770bd004ed5af63fd6", [:mix], [], "hexpm", "935a39fdaf2445834b95951456559e9dc2063d0a055742c558a99987b38d6bab"},
   "ratio": {:hex, :ratio, "4.0.1", "3044166f2fc6890aa53d3aef0c336f84b2bebb889dc57d5f95cc540daa1912f8", [:mix], [{:decimal, "~> 1.6 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}, {:numbers, "~> 5.2.0", [hex: :numbers, repo: "hexpm", optional: false]}], "hexpm", "c60cbb3ccdff9ffa56e7d6d1654b5c70d9f90f4d753ab3a43a6bf40855b881ce"},
-  "req": {:hex, :req, "0.5.4", "e375e4812adf83ffcf787871d7a124d873e983e3b77466e6608b973582f7f837", [:mix], [{:brotli, "~> 0.3.1", [hex: :brotli, repo: "hexpm", optional: true]}, {:ezstd, "~> 1.0", [hex: :ezstd, repo: "hexpm", optional: true]}, {:finch, "~> 0.17", [hex: :finch, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:mime, "~> 2.0.6 or ~> 2.1", [hex: :mime, repo: "hexpm", optional: false]}, {:nimble_csv, "~> 1.0", [hex: :nimble_csv, repo: "hexpm", optional: true]}, {:plug, "~> 1.0", [hex: :plug, repo: "hexpm", optional: true]}], "hexpm", "a17998ffe2ef54f79bfdd782ef9f4cbf987d93851e89444cbc466a6a25eee494"},
+  "req": {:hex, :req, "0.5.6", "8fe1eead4a085510fe3d51ad854ca8f20a622aae46e97b302f499dfb84f726ac", [:mix], [{:brotli, "~> 0.3.1", [hex: :brotli, repo: "hexpm", optional: true]}, {:ezstd, "~> 1.0", [hex: :ezstd, repo: "hexpm", optional: true]}, {:finch, "~> 0.17", [hex: :finch, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:mime, "~> 2.0.6 or ~> 2.1", [hex: :mime, repo: "hexpm", optional: false]}, {:nimble_csv, "~> 1.0", [hex: :nimble_csv, repo: "hexpm", optional: true]}, {:plug, "~> 1.0", [hex: :plug, repo: "hexpm", optional: true]}], "hexpm", "cfaa8e720945d46654853de39d368f40362c2641c4b2153c886418914b372185"},
   "shmex": {:hex, :shmex, "0.5.1", "81dd209093416bf6608e66882cb7e676089307448a1afd4fc906c1f7e5b94cf4", [:mix], [{:bunch_native, "~> 0.5.0", [hex: :bunch_native, repo: "hexpm", optional: false]}, {:bundlex, "~> 1.0", [hex: :bundlex, repo: "hexpm", optional: false]}], "hexpm", "c29f8286891252f64c4e1dac40b217d960f7d58def597c4e606ff8fbe71ceb80"},
   "telemetry": {:hex, :telemetry, "1.2.1", "68fdfe8d8f05a8428483a97d7aab2f268aaff24b49e0f599faa091f1d4e7f61c", [:rebar3], [], "hexpm", "dad9ce9d8effc621708f99eac538ef1cbe05d6a874dd741de2e689c47feafed5"},
   "telemetry_metrics": {:hex, :telemetry_metrics, "0.6.2", "2caabe9344ec17eafe5403304771c3539f3b6e2f7fb6a6f602558c825d0d0bfb", [:mix], [{:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "9b43db0dc33863930b9ef9d27137e78974756f5f198cae18409970ed6fa5b561"},
diff --git a/test/boombox_test.exs b/test/boombox_test.exs
index c411e5e..9d99aa7 100644
--- a/test/boombox_test.exs
+++ b/test/boombox_test.exs
@@ -125,10 +125,9 @@ defmodule BoomboxTest do
   defp send_rtmp(url) do
     p =
       Testing.Pipeline.start_link_supervised!(
-        spec: [
+        spec:
           child(%Membrane.File.Source{location: @bbb_mp4, seekable?: true})
           |> child(:demuxer, %Membrane.MP4.Demuxer.ISOM{optimize_for_non_fast_start?: true})
-        ]
       )
 
     assert_pipeline_notified(p, :demuxer, {:new_tracks, tracks})