diff --git a/dependencyManagement/build.gradle.kts b/dependencyManagement/build.gradle.kts
index 915594a2f1ee..a5083a957a1a 100644
--- a/dependencyManagement/build.gradle.kts
+++ b/dependencyManagement/build.gradle.kts
@@ -104,7 +104,7 @@ val DEPENDENCIES = listOf(
   "io.opentelemetry.contrib:opentelemetry-cloudfoundry-resources:${otelContribVersion}",
   "io.opentelemetry.contrib:opentelemetry-baggage-processor:${otelContribVersion}",
   "io.opentelemetry.contrib:opentelemetry-samplers:${otelContribVersion}",
-  "io.opentelemetry.proto:opentelemetry-proto:1.8.0-alpha",
+  "io.opentelemetry.proto:opentelemetry-proto:1.9.0-alpha",
   "io.opentelemetry:opentelemetry-extension-annotations:1.18.0", // deprecated, no longer part of bom
   "org.assertj:assertj-core:3.27.6",
   "org.awaitility:awaitility:4.3.0",
diff --git a/examples/distro/smoke-tests/build.gradle b/examples/distro/smoke-tests/build.gradle
index 1e6e4f976c73..13ce0e5f6643 100644
--- a/examples/distro/smoke-tests/build.gradle
+++ b/examples/distro/smoke-tests/build.gradle
@@ -7,7 +7,7 @@ dependencies {
   testImplementation("com.fasterxml.jackson.core:jackson-databind:2.20.1")
   testImplementation("com.google.protobuf:protobuf-java-util:4.33.1")
   testImplementation("com.squareup.okhttp3:okhttp:5.3.0")
-  testImplementation("io.opentelemetry.proto:opentelemetry-proto:1.8.0-alpha")
+  testImplementation("io.opentelemetry.proto:opentelemetry-proto:1.9.0-alpha")
   testImplementation("io.opentelemetry:opentelemetry-api")
 
   testImplementation("ch.qos.logback:logback-classic:1.5.21")
diff --git a/examples/extension/build.gradle b/examples/extension/build.gradle
index d6d125b12216..43cfdb45f05d 100644
--- a/examples/extension/build.gradle
+++ b/examples/extension/build.gradle
@@ -103,7 +103,7 @@ dependencies {
   testImplementation("com.google.protobuf:protobuf-java-util:4.33.1")
   testImplementation("com.squareup.okhttp3:okhttp:5.3.0")
   testImplementation("io.opentelemetry:opentelemetry-api")
-  testImplementation("io.opentelemetry.proto:opentelemetry-proto:1.8.0-alpha")
+  testImplementation("io.opentelemetry.proto:opentelemetry-proto:1.9.0-alpha")
 
   testImplementation(enforcedPlatform("org.junit:junit-bom:5.14.1"))
   testImplementation("org.junit.jupiter:junit-jupiter-api")