diff --git a/Dockerfile b/Dockerfile
index 6fb725e..1c34f4e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM gradle:8.14.3-jdk17 AS builder
+FROM gradle:9.1.0-jdk17 AS builder
 
 COPY ./ /project
 RUN cd /project && gradle :keycloak-extensions:assemble