diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 590fc15ae1d95d2fe63649d8fd7c57bddfb7f8cb..986de41fbd61a6a29e950542b2ba3c739a398aa5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,6 +8,7 @@ on:
 jobs:
   check-commit:
     runs-on: ubuntu-latest
+    if: ${{ github.event.pull_request }}
     steps:
       - uses: actions/checkout@v2.3.1
         with:
@@ -18,6 +19,7 @@ jobs:
 
   check-format:
     runs-on: ubuntu-latest
+    if: ${{ github.event.pull_request }}
     steps:
       - uses: actions/checkout@v2.3.1
         with: