diff --git a/.github/workflows/testsuite.yml b/.github/workflows/testsuite.yml
index 27046b25..39964f4f 100644
--- a/.github/workflows/testsuite.yml
+++ b/.github/workflows/testsuite.yml
@@ -8,8 +8,8 @@ jobs:
   build-clj:
     strategy:
       matrix:
-        # Supported Java versions: LTS releases 8 and 11 and the latest release
-        jdk: [11, 15]
+        # Supported Java versions: LTS releases and latest
+        jdk: [8, 11, 17, 21]
 
     name: Clojure (Java ${{ matrix.jdk }})