diff --git a/.github/workflows/gradle.yml b/.github/workflows/gradle.yml
index 14e3b7a8..8c39b1f9 100644
--- a/.github/workflows/gradle.yml
+++ b/.github/workflows/gradle.yml
@@ -15,7 +15,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest, macOS-latest]
-        java: [11]
+        java: [20]
         include: # test newest java on one os only, upload from ubuntu java11
           - os: ubuntu-latest
             java: 17