diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 97bf66f2..5f01c33d 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -1,4 +1,8 @@
-on: [push]
+on:
+  push:
+    branches:
+      - master
+  pull_request:
 name: ci
 jobs:
   test:
@@ -7,7 +11,7 @@ jobs:
       matrix:
         node: [10, 12, 13]
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
       - uses: actions/setup-node@v1
         with:
           node-version: ${{ matrix.node }}
@@ -17,7 +21,7 @@ jobs:
   windows:
     runs-on: windows-latest
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
       - uses: actions/setup-node@v1
         with:
           node-version: 12
@@ -26,7 +30,7 @@ jobs:
   system_test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
       - uses: actions/setup-node@v1
         with:
           node-version: 12
@@ -35,7 +39,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
       - uses: actions/setup-node@v1
         with:
           node-version: 12
@@ -44,7 +48,7 @@ jobs:
   license_check:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
       - uses: actions/setup-node@v1
         with:
           node-version: 12
@@ -53,7 +57,7 @@ jobs:
   coverage:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
       - uses: actions/setup-node@v1
         with:
           node-version: 12
@@ -63,4 +67,3 @@ jobs:
       - uses: codecov/codecov-action@v1
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
-  
\ No newline at end of file