diff --git a/buildSrc/src/main/kotlin/otel.java-conventions.gradle.kts b/buildSrc/src/main/kotlin/otel.java-conventions.gradle.kts
index f39ae5c5e..e8e70499a 100644
--- a/buildSrc/src/main/kotlin/otel.java-conventions.gradle.kts
+++ b/buildSrc/src/main/kotlin/otel.java-conventions.gradle.kts
@@ -136,7 +136,7 @@ testing {
       implementation(project(project.path))
 
       implementation(enforcedPlatform("org.junit:junit-bom:5.11.4"))
-      implementation(enforcedPlatform("org.testcontainers:testcontainers-bom:1.20.4"))
+      implementation(enforcedPlatform("org.testcontainers:testcontainers-bom:1.20.5"))
       implementation(enforcedPlatform("com.google.guava:guava-bom:33.4.0-jre"))
       implementation(enforcedPlatform("com.linecorp.armeria:armeria-bom:1.31.3"))