diff --git a/.github/workflows/mkdocs.yml b/.github/workflows/mkdocs.yml
index 9bb0693..d26636f 100644
--- a/.github/workflows/mkdocs.yml
+++ b/.github/workflows/mkdocs.yml
@@ -16,7 +16,7 @@ jobs:
         access_token: ${{ github.token }}
 
     - name: checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: deploy
       uses: mhausenblas/mkdocs-deploy-gh-pages@master
diff --git a/.github/workflows/terraform.yml b/.github/workflows/terraform.yml
index 005072a..ff3e1e1 100644
--- a/.github/workflows/terraform.yml
+++ b/.github/workflows/terraform.yml
@@ -21,7 +21,7 @@ jobs:
     if: github.ref != 'refs/heads/release'
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - uses: actions/setup-node@v3
       with:
@@ -40,7 +40,7 @@ jobs:
     if: github.ref != 'refs/heads/release'
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - uses: hashicorp/setup-terraform@v2
       with:
@@ -81,7 +81,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Semantic Release
       uses: cycjimmy/semantic-release-action@v2