diff --git a/lean/Cargo.lock b/lean/Cargo.lock
index b5471ee..0619da7 100644
--- a/lean/Cargo.lock
+++ b/lean/Cargo.lock
@@ -458,7 +458,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "907076dfda823b0b36d2a1bb5f90c96660a5bbcd7729e10727f07858f22c4edc"
 dependencies = [
  "cfg-if",
- "hashbrown",
+ "hashbrown 0.12.3",
  "lock_api",
  "once_cell",
  "parking_lot_core 0.9.7",
@@ -516,6 +516,12 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "equivalent"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5443807d6dff69373d433ab9ef5378ad8df50ca6298caf15de6e52e24aaf54d5"
+
 [[package]]
 name = "errno"
 version = "0.2.8"
@@ -757,7 +763,7 @@ dependencies = [
  "futures-sink",
  "futures-util",
  "http",
- "indexmap",
+ "indexmap 1.9.3",
  "slab",
  "tokio",
  "tokio-util",
@@ -773,13 +779,19 @@ dependencies = [
  "ahash",
 ]
 
+[[package]]
+name = "hashbrown"
+version = "0.14.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "290f1a1d9242c78d09ce40a5e87e7554ee637af1351968159f4952f028f75604"
+
 [[package]]
 name = "hashlink"
 version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "69fe1fcf8b4278d860ad0548329f892a3631fb63f82574df68275f34cdbe0ffa"
 dependencies = [
- "hashbrown",
+ "hashbrown 0.12.3",
 ]
 
 [[package]]
@@ -942,7 +954,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bd070e393353796e801d209ad339e89596eb4c8d430d18ede6a1cced8fafbd99"
 dependencies = [
  "autocfg",
- "hashbrown",
+ "hashbrown 0.12.3",
+]
+
+[[package]]
+name = "indexmap"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d530e1a18b1cb4c484e6e34556a0d948706958449fca0cab753d649f2bce3d1f"
+dependencies = [
+ "equivalent",
+ "hashbrown 0.14.3",
 ]
 
 [[package]]
@@ -1036,7 +1058,7 @@ dependencies = [
  "time",
  "tokio",
  "tonic 0.9.2",
- "tonic-build 0.9.1",
+ "tonic-build",
  "tower",
  "tower-http",
  "tracing",
@@ -1269,36 +1291,60 @@ dependencies = [
  "opentelemetry_sdk 0.20.0",
 ]
 
+[[package]]
+name = "opentelemetry"
+version = "0.21.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e32339a5dc40459130b3bd269e9892439f55b33e772d2a9d402a789baaf4e8a"
+dependencies = [
+ "futures-core",
+ "futures-sink",
+ "indexmap 2.1.0",
+ "js-sys",
+ "once_cell",
+ "pin-project-lite",
+ "thiserror",
+ "urlencoding",
+]
+
 [[package]]
 name = "opentelemetry-otlp"
-version = "0.11.0"
+version = "0.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d1c928609d087790fc936a1067bdc310ae702bdf3b090c3f281b713622c8bbde"
+checksum = "f24cda83b20ed2433c68241f918d0f6fdec8b1d43b7a9590ab4420c5095ca930"
 dependencies = [
  "async-trait",
- "futures",
- "futures-util",
+ "futures-core",
  "http",
- "opentelemetry 0.18.0",
+ "opentelemetry 0.21.0",
  "opentelemetry-proto",
+ "opentelemetry-semantic-conventions",
+ "opentelemetry_sdk 0.21.1",
  "prost",
  "thiserror",
  "tokio",
- "tonic 0.8.3",
+ "tonic 0.9.2",
 ]
 
 [[package]]
 name = "opentelemetry-proto"
-version = "0.1.0"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d61a2f56df5574508dd86aaca016c917489e589ece4141df1b5e349af8d66c28"
+checksum = "a2e155ce5cc812ea3d1dffbd1539aed653de4bf4882d60e6e04dcf0901d674e1"
 dependencies = [
- "futures",
- "futures-util",
- "opentelemetry 0.18.0",
+ "opentelemetry 0.21.0",
+ "opentelemetry_sdk 0.21.1",
  "prost",
- "tonic 0.8.3",
- "tonic-build 0.8.4",
+ "tonic 0.9.2",
+]
+
+[[package]]
+name = "opentelemetry-semantic-conventions"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f5774f1ef1f982ef2a447f6ee04ec383981a3ab99c8e77a1a7b30182e65bbc84"
+dependencies = [
+ "opentelemetry 0.21.0",
 ]
 
 [[package]]
@@ -1310,7 +1356,7 @@ dependencies = [
  "fnv",
  "futures-channel",
  "futures-util",
- "indexmap",
+ "indexmap 1.9.3",
  "js-sys",
  "once_cell",
  "pin-project-lite",
@@ -1325,7 +1371,7 @@ checksum = "ed41783a5bf567688eb38372f2b7a8530f5a607a4b49d38dd7573236c23ca7e2"
 dependencies = [
  "futures-channel",
  "futures-util",
- "indexmap",
+ "indexmap 1.9.3",
  "once_cell",
  "pin-project-lite",
  "thiserror",
@@ -1340,7 +1386,7 @@ checksum = "8a81f725323db1b1206ca3da8bb19874bbd3f57c3bcd59471bfb04525b265b9b"
 dependencies = [
  "futures-channel",
  "futures-util",
- "indexmap",
+ "indexmap 1.9.3",
  "js-sys",
  "once_cell",
  "pin-project-lite",
@@ -1381,7 +1427,7 @@ dependencies = [
  "futures-util",
  "once_cell",
  "opentelemetry_api 0.20.0",
- "ordered-float",
+ "ordered-float 3.9.2",
  "percent-encoding",
  "rand",
  "regex",
@@ -1390,6 +1436,25 @@ dependencies = [
  "tokio-stream",
 ]
 
+[[package]]
+name = "opentelemetry_sdk"
+version = "0.21.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "968ba3f2ca03e90e5187f5e4f46c791ef7f2c163ae87789c8ce5f5ca3b7b7de5"
+dependencies = [
+ "async-trait",
+ "crossbeam-channel",
+ "futures-channel",
+ "futures-executor",
+ "futures-util",
+ "once_cell",
+ "opentelemetry 0.21.0",
+ "ordered-float 4.2.0",
+ "percent-encoding",
+ "rand",
+ "thiserror",
+]
+
 [[package]]
 name = "ordered-float"
 version = "3.9.2"
@@ -1399,6 +1464,15 @@ dependencies = [
  "num-traits",
 ]
 
+[[package]]
+name = "ordered-float"
+version = "4.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a76df7075c7d4d01fdcb46c912dd17fba5b60c78ea480b475f2b6ab6f666584e"
+dependencies = [
+ "num-traits",
+]
+
 [[package]]
 name = "output_vt100"
 version = "0.1.3"
@@ -1487,7 +1561,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4dd7d28ee937e54fe3080c91faa1c3a46c06de6252988a7f4592ba2310ef22a4"
 dependencies = [
  "fixedbitset",
- "indexmap",
+ "indexmap 1.9.3",
 ]
 
 [[package]]
@@ -2060,7 +2134,7 @@ dependencies = [
  "hex",
  "hkdf",
  "hmac",
- "indexmap",
+ "indexmap 1.9.3",
  "itoa",
  "libc",
  "log",
@@ -2393,19 +2467,6 @@ dependencies = [
  "tracing",
 ]
 
-[[package]]
-name = "tonic-build"
-version = "0.8.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5bf5e9b9c0f7e0a7c027dcfaba7b2c60816c7049171f679d99ee2ff65d0de8c4"
-dependencies = [
- "prettyplease",
- "proc-macro2",
- "prost-build",
- "quote",
- "syn 1.0.109",
-]
-
 [[package]]
 name = "tonic-build"
 version = "0.9.1"
@@ -2428,7 +2489,7 @@ dependencies = [
  "futures-core",
  "futures-util",
  "hdrhistogram",
- "indexmap",
+ "indexmap 1.9.3",
  "pin-project",
  "pin-project-lite",
  "rand",
diff --git a/lean/Cargo.toml b/lean/Cargo.toml
index 13e68c5..374aa1e 100644
--- a/lean/Cargo.toml
+++ b/lean/Cargo.toml
@@ -25,7 +25,7 @@ console-subscriber = "0.1.8"
 futures = "0.3"
 tracing-opentelemetry = "0.18.0"
 opentelemetry = { version = "0.20.0", features = ["rt-tokio", "trace", "metrics"] }
-opentelemetry-otlp = { version = "0.11.0", features = ["tokio", "tonic"] }
+opentelemetry-otlp = { version = "0.14.0", features = ["tokio", "tonic"] }
 opentelemetry_api = { version = "0.19.0" }
 serde-xml-rs = "0.6.0"