diff --git a/data-prepper-plugins/otel-metrics-source/build.gradle b/data-prepper-plugins/otel-metrics-source/build.gradle
index 96d250d67d..6c5a95d795 100644
--- a/data-prepper-plugins/otel-metrics-source/build.gradle
+++ b/data-prepper-plugins/otel-metrics-source/build.gradle
@@ -30,7 +30,7 @@ dependencies {
     implementation libs.commons.lang3
     implementation libs.bouncycastle.bcprov
     implementation libs.bouncycastle.bcpkix
-    testImplementation 'org.assertj:assertj-core:3.25.3'
+    testImplementation 'org.assertj:assertj-core:3.27.0'
     testImplementation libs.commons.io
 }