diff --git a/test/Dockerfile.jammy b/test/Dockerfile.jammy
index 08dc0d95c..40ca2c3bb 100644
--- a/test/Dockerfile.jammy
+++ b/test/Dockerfile.jammy
@@ -101,7 +101,7 @@ FROM build as test-java
 # renovate: datasource=adoptium-java packageName=java-jre
 RUN install-tool java 17.0.8+101
 # renovate: datasource=gradle-version packageName=gradle versioning=gradle
-RUN install-tool gradle 8.3
+RUN install-tool gradle 8.4
 
 #--------------------------------------
 # Image: test-node
diff --git a/test/java/Dockerfile b/test/java/Dockerfile
index f00b0176f..61c5c70c7 100644
--- a/test/java/Dockerfile
+++ b/test/java/Dockerfile
@@ -90,7 +90,7 @@ FROM base as testb
 RUN install-tool java-jre 18.0.2+9
 
 # renovate: datasource=gradle-version versioning=gradle
-RUN install-tool gradle 8.3
+RUN install-tool gradle 8.4
 
 USER 1000
 
diff --git a/test/java/Dockerfile.arm64 b/test/java/Dockerfile.arm64
index 625f1dad6..771d67ddd 100644
--- a/test/java/Dockerfile.arm64
+++ b/test/java/Dockerfile.arm64
@@ -30,7 +30,7 @@ RUN install-tool java 17.0.8+101
 FROM test-java as test-gradle
 
 # renovate: datasource=gradle-version packageName=gradle versioning=gradle
-RUN install-tool gradle 8.3
+RUN install-tool gradle 8.4
 
 #--------------------------------------
 # Image: maven