diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index bf4b88b..8630ca0 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -35,7 +35,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
diff --git a/.github/workflows/reviewdog.yml b/.github/workflows/reviewdog.yml
index f5f0aa4..df60119 100644
--- a/.github/workflows/reviewdog.yml
+++ b/.github/workflows/reviewdog.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: clone
-      uses: actions/checkout@v3
+      uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
     - name: install go
       uses: actions/setup-go@v4
@@ -34,7 +34,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: clone
-      uses: actions/checkout@v3
+      uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
     - name: install go
       uses: actions/setup-go@v4
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 24d536b..e5161cf 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: clone
-      uses: actions/checkout@v3
+      uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
     - name: install go
       uses: actions/setup-go@v4
diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index 151fbe3..f7ad135 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: clone
-      uses: actions/checkout@v3
+      uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
     
     - name: install go
       uses: actions/setup-go@v4