diff --git a/.github/workflows/checkstyle.yml b/.github/workflows/checkstyle.yml
index 497203a223..cb3536f139 100644
--- a/.github/workflows/checkstyle.yml
+++ b/.github/workflows/checkstyle.yml
@@ -1,6 +1,7 @@
 name: Checkstyle
 
 on:
+  workflow_dispatch:
   pull_request:
     branches: [ main ]
 
@@ -15,7 +16,7 @@ jobs:
       matrix:
         os: [ ubuntu-latest ]
         java-distribution: [ temurin ]
-        java-version: [ 21, 25 ]
+        java-version: ${{ github.event_name == 'workflow_dispatch' && fromJSON('[21, 25]') || fromJSON('[21]') }}
       fail-fast: false
 
     steps: