diff --git a/.github/workflows/test-bundle.yml b/.github/workflows/test-bundle.yml
index 7ffa10a..5e7c04d 100644
--- a/.github/workflows/test-bundle.yml
+++ b/.github/workflows/test-bundle.yml
@@ -15,8 +15,9 @@ jobs:
         os: [ubuntu-latest, macos-latest, macos-13]
         ruby: ['3.0', '3.1', '3.2', '3.3', 'head']
 
-    name: >-
-      ${{matrix.os}}, ${{matrix.ruby}}
+    name: ${{matrix.os}}, ${{matrix.ruby}}
+
+    if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
 
     runs-on: ${{matrix.os}}
     steps:
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 354c09d..908dba4 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -15,8 +15,9 @@ jobs:
         os: [ubuntu-latest, macos-latest, macos-13]
         ruby: ['3.0', '3.1', '3.2', '3.3', 'head']
 
-    name: >-
-      ${{matrix.os}}, ${{matrix.ruby}}
+    name: ${{matrix.os}}, ${{matrix.ruby}}
+
+    if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
 
     runs-on: ${{matrix.os}}
     steps: