diff --git a/pbj-core/hiero-dependency-versions/build.gradle.kts b/pbj-core/hiero-dependency-versions/build.gradle.kts
index f2b81d76..be8db61b 100644
--- a/pbj-core/hiero-dependency-versions/build.gradle.kts
+++ b/pbj-core/hiero-dependency-versions/build.gradle.kts
@@ -56,7 +56,7 @@ dependencies.constraints {
     api("io.grpc:protoc-gen-grpc-java:1.71.0")
 
     // Testing only
-    api("com.google.guava:guava:33.4.7-jre") { because("com.google.common") }
+    api("com.google.guava:guava:33.4.8-jre") { because("com.google.common") }
     api("com.google.protobuf:protobuf-java:$protobuf") { because("com.google.protobuf") }
     api("com.google.protobuf:protobuf-java-util:$protobuf") { because("com.google.protobuf.util") }
     api("org.assertj:assertj-core:3.27.3") { because("org.assertj.core") }