diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a6fd050..4853e9c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,7 +8,7 @@ jobs:
         jdk: [ 11, 17, 21 ]
         vault: [ '1.2.0', '1.11.12', '1.15.0' ]
         include:
-          - jdk: 17
+          - jdk: 21
             vault: '1.11.12'
             analysis: true
     steps: