diff --git a/.circleci/config.yml b/.circleci/config.yml
index 9b0c28a..095bf8f 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -4,7 +4,7 @@ version: 2.1
 jobs:
   test-java:
     docker:
-      - image: cimg/openjdk:17.0
+      - image: cimg/openjdk:21.0
     steps:
       - checkout
       - run: