diff --git a/data-prepper-plugins/otel-trace-source/build.gradle b/data-prepper-plugins/otel-trace-source/build.gradle
index de8150852b..031aec9696 100644
--- a/data-prepper-plugins/otel-trace-source/build.gradle
+++ b/data-prepper-plugins/otel-trace-source/build.gradle
@@ -28,7 +28,7 @@ dependencies {
     implementation libs.commons.lang3
     implementation libs.bouncycastle.bcprov
     implementation libs.bouncycastle.bcpkix
-    testImplementation 'org.assertj:assertj-core:3.24.2'
+    testImplementation 'org.assertj:assertj-core:3.25.2'
     testImplementation testLibs.mockito.inline
     testImplementation testLibs.slf4j.simple
     testImplementation libs.commons.io