diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 377d7364..e9bde3ca 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -7,7 +7,7 @@ name: build
 on: [pull_request, push]
 
 env:
-    JAVA_VERSION: 21
+    JAVA_VERSION: 17
 
 jobs:
   build: