diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index d0bc576c1e..0a52e6f96b 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -4,7 +4,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3.1.0
     - name: Setup
       run: |
         sudo apt install -y libboost-all-dev
diff --git a/.github/workflows/copyrights.yml b/.github/workflows/copyrights.yml
index a25cedf404..96f6ab774a 100644
--- a/.github/workflows/copyrights.yml
+++ b/.github/workflows/copyrights.yml
@@ -5,7 +5,7 @@ jobs:
   copyrights:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3.1.0
     - name: Check
       run: |
         ./tools/check_copyrights.sh
diff --git a/.github/workflows/coveralls.yml b/.github/workflows/coveralls.yml
index 1f72ce8443..2fe4a73386 100644
--- a/.github/workflows/coveralls.yml
+++ b/.github/workflows/coveralls.yml
@@ -4,7 +4,7 @@ jobs:
   coverage:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3.1.0
     - name: Setup
       run: |
         sudo apt install -y lcov libboost-all-dev
diff --git a/.github/workflows/headers.yml b/.github/workflows/headers.yml
index b2b610d662..24d116e0cc 100644
--- a/.github/workflows/headers.yml
+++ b/.github/workflows/headers.yml
@@ -4,7 +4,7 @@ jobs:
   headers:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3.1.0
     - name: Setup
       run: |
         sudo apt install -y libboost-dev
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index b2c4551bfc..a77b5f81d0 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -4,7 +4,7 @@ jobs:
   build:
     runs-on: macos-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3.1.0
     - name: Setup
       run: |
         brew install automake boost
diff --git a/.github/workflows/misspell.yml b/.github/workflows/misspell.yml
index 8d44ae6c4e..c4e280526d 100644
--- a/.github/workflows/misspell.yml
+++ b/.github/workflows/misspell.yml
@@ -5,7 +5,7 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3.1.0
     - uses: sobolevn/misspell-fixer-action@master
     - uses: peter-evans/create-pull-request@v2
       with:
diff --git a/.github/workflows/tidy.yml b/.github/workflows/tidy.yml
index dde8ffcb84..4c136ea7a0 100644
--- a/.github/workflows/tidy.yml
+++ b/.github/workflows/tidy.yml
@@ -7,7 +7,7 @@ jobs:
   check:
     runs-on: ubuntu-20.04
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3.1.0
     - name: Setup
       run: |
         sudo apt-get install -y clang-tidy libboost-dev