diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index a9940ca..70ceea0 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -21,7 +21,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        java-version: [8, 11, 17]
+        java-version: [8, 11, 17, 21]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
diff --git a/src/releases.ts b/src/releases.ts
index fde6639..ff8ca06 100644
--- a/src/releases.ts
+++ b/src/releases.ts
@@ -44,6 +44,10 @@ export class Releases {
             // Versions after v1.24.0 require JDK 17+
             return (await this.getReleaseDataByName('v1.24.0'))!;
         }
+        if (javaVersion < 21) {
+            // Versions after v1.28.0 require JDK 21+
+            return (await this.getReleaseDataByName('v1.28.0'))!;
+        }
         if (!this.octokit) {
             return this.callReleasesApi('/latest');
         }
@@ -56,4 +60,4 @@ export class Releases {
         const allReleaseData = await this.getAllReleaseData();
         return allReleaseData.find(r => r.name === releaseName);
     }
-}
\ No newline at end of file
+}