diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bef4cfe3c..07ba7902f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-18.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3.1.0
         with:
           submodules: recursive
 
@@ -38,7 +38,7 @@ jobs:
     runs-on: windows-2019
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3.1.0
         with:
           submodules: recursive
 
@@ -67,7 +67,7 @@ jobs:
     runs-on: windows-2019
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3.1.0
         with:
           submodules: recursive
 
@@ -101,7 +101,7 @@ jobs:
     runs-on: macos-11
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3.1.0
         with:
           submodules: recursive
 
@@ -123,7 +123,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3.1.0
 
       - name: Make apt sources.list use the default Ubuntu repositories
         run: |