diff --git a/build.sbt b/build.sbt
index 23c258db..2fb9aa20 100644
--- a/build.sbt
+++ b/build.sbt
@@ -8,7 +8,7 @@ inThisBuild(
   List(
     name              := "ZIO Telemetry",
     organization      := "dev.zio",
-    zioVersion        := "2.1.7",
+    zioVersion        := "2.1.9",
     homepage          := Some(url("https://zio.dev/zio-telemetry/")),
     licenses          := List("Apache-2.0" -> url("http://www.apache.org/licenses/LICENSE-2.0")),
     developers        := List(
diff --git a/project/Dependencies.scala b/project/Dependencies.scala
index bb5ea774..7eb9b29a 100644
--- a/project/Dependencies.scala
+++ b/project/Dependencies.scala
@@ -7,7 +7,7 @@ object Dependencies {
     val opentelemetry         = "1.41.0"
     val opencensus            = "0.31.1"
     val scalaCollectionCompat = "2.12.0"
-    val zio                   = "2.1.7"
+    val zio                   = "2.1.9"
     val zioLogging            = "2.3.1"
     val izumiReflect          = "2.3.10"
   }
diff --git a/scala-cli/opentelemetry-zio-logging/ZioLoggingApp.scala b/scala-cli/opentelemetry-zio-logging/ZioLoggingApp.scala
index 8f574d36..d00497e8 100644
--- a/scala-cli/opentelemetry-zio-logging/ZioLoggingApp.scala
+++ b/scala-cli/opentelemetry-zio-logging/ZioLoggingApp.scala
@@ -1,5 +1,5 @@
 //> using scala "3.5.0"
-//> using dep dev.zio::zio:2.1.7
+//> using dep dev.zio::zio:2.1.9
 //> using dep dev.zio::zio-opentelemetry:3.0.0-RC26
 //> using dep dev.zio::zio-opentelemetry-zio-logging:3.0.0-RC26
 //> using dep io.opentelemetry:opentelemetry-sdk:1.41.0
diff --git a/scala-cli/opentelemetry/BaggageApp.scala b/scala-cli/opentelemetry/BaggageApp.scala
index e284577f..32f612c2 100644
--- a/scala-cli/opentelemetry/BaggageApp.scala
+++ b/scala-cli/opentelemetry/BaggageApp.scala
@@ -1,5 +1,5 @@
 //> using scala "3.5.0"
-//> using dep dev.zio::zio:2.1.7
+//> using dep dev.zio::zio:2.1.9
 //> using dep dev.zio::zio-opentelemetry:3.0.0-RC26
 
 import zio.*
diff --git a/scala-cli/opentelemetry/LoggingApp.scala b/scala-cli/opentelemetry/LoggingApp.scala
index 46f498b5..0dcb1f4d 100644
--- a/scala-cli/opentelemetry/LoggingApp.scala
+++ b/scala-cli/opentelemetry/LoggingApp.scala
@@ -1,5 +1,5 @@
 //> using scala "3.5.0"
-//> using dep dev.zio::zio:2.1.7
+//> using dep dev.zio::zio:2.1.9
 //> using dep dev.zio::zio-opentelemetry:3.0.0-RC26
 //> using dep io.opentelemetry:opentelemetry-sdk:1.41.0
 //> using dep io.opentelemetry:opentelemetry-sdk-trace:1.41.0
diff --git a/scala-cli/opentelemetry/MetricsApp.scala b/scala-cli/opentelemetry/MetricsApp.scala
index 46fe9af4..c14dc843 100644
--- a/scala-cli/opentelemetry/MetricsApp.scala
+++ b/scala-cli/opentelemetry/MetricsApp.scala
@@ -1,5 +1,5 @@
 //> using scala "3.5.0"
-//> using dep dev.zio::zio:2.1.7
+//> using dep dev.zio::zio:2.1.9
 //> using dep dev.zio::zio-opentelemetry:3.0.0-RC26
 //> using dep io.opentelemetry:opentelemetry-sdk:1.41.0
 //> using dep io.opentelemetry:opentelemetry-sdk-trace:1.41.0
diff --git a/scala-cli/opentelemetry/PropagatingApp.scala b/scala-cli/opentelemetry/PropagatingApp.scala
index d9fa8cd9..750b813d 100644
--- a/scala-cli/opentelemetry/PropagatingApp.scala
+++ b/scala-cli/opentelemetry/PropagatingApp.scala
@@ -1,5 +1,5 @@
 //> using scala "3.5.0"
-//> using dep dev.zio::zio:2.1.7
+//> using dep dev.zio::zio:2.1.9
 //> using dep dev.zio::zio-opentelemetry:3.0.0-RC26
 //> using dep io.opentelemetry:opentelemetry-sdk:1.41.0
 //> using dep io.opentelemetry:opentelemetry-sdk-trace:1.41.0
diff --git a/scala-cli/opentelemetry/TracingApp.scala b/scala-cli/opentelemetry/TracingApp.scala
index 89a7febe..226418a8 100644
--- a/scala-cli/opentelemetry/TracingApp.scala
+++ b/scala-cli/opentelemetry/TracingApp.scala
@@ -1,5 +1,5 @@
 //> using scala "3.5.0"
-//> using dep dev.zio::zio:2.1.7
+//> using dep dev.zio::zio:2.1.9
 //> using dep dev.zio::zio-opentelemetry:3.0.0-RC26
 //> using dep io.opentelemetry:opentelemetry-sdk:1.41.0
 //> using dep io.opentelemetry:opentelemetry-sdk-trace:1.41.0