diff --git a/Dockerfile b/Dockerfile
index 9ae49ad..a7b61ca 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM openjdk:18.0.1
+FROM openjdk:21
 WORKDIR /bot_src
 ARG BUILD_NBR
 ARG BRANCH_NAME