diff --git a/.github/workflows/gradle.yml b/.github/workflows/gradle.yml
index 5327fb7..4b96449 100644
--- a/.github/workflows/gradle.yml
+++ b/.github/workflows/gradle.yml
@@ -8,8 +8,14 @@
 name: Java CI with Gradle
 
 on:
+  workflow_dispatch:
   push:
     branches: [ "1.21.x" ]
+    if: "!startsWith(github.ref, 'refs/tags/')"
+  push:
+    branches: [ "1.21.x" ]
+    tags: "*"
+    if: "startsWith(github.ref, 'refs/tags/')"
   pull_request:
     branches: [ "1.21.x" ]