diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index b37a137..652298f 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -38,7 +38,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3.6.0
+      uses: actions/checkout@v4.0.0
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
diff --git a/.github/workflows/main-ci.yml b/.github/workflows/main-ci.yml
index d238ab7..56d24fb 100644
--- a/.github/workflows/main-ci.yml
+++ b/.github/workflows/main-ci.yml
@@ -14,7 +14,7 @@ jobs:
       # GitHub Actions do not automatically checkout your projects. If you need the code
       # you need to check it out.
       - name: Checkout
-        uses: actions/checkout@v3.6.0
+        uses: actions/checkout@v4.0.0
       - name: Prepare
         id: prep
         run: |
diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index 8e39a99..8b83a12 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -14,7 +14,7 @@ jobs:
       # GitHub Actions do not automatically checkout your projects. If you need the code
       # you need to check it out.
       - name: Checkout
-        uses: actions/checkout@v3.6.0
+        uses: actions/checkout@v4.0.0
       - name: Login to ghcr
         uses: docker/login-action@v2
         with:
diff --git a/.github/workflows/pr-ci.yml b/.github/workflows/pr-ci.yml
index 52f34f9..741f589 100644
--- a/.github/workflows/pr-ci.yml
+++ b/.github/workflows/pr-ci.yml
@@ -15,7 +15,7 @@ jobs:
       # GitHub Actions do not automatically checkout your projects. If you need the code
       # you need to check it out.
       - name: Checkout
-        uses: actions/checkout@v3.6.0
+        uses: actions/checkout@v4.0.0
 
       - name: Set up Docker Buildx
         id: buildx
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 9daeccd..c0862bc 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -15,7 +15,7 @@ jobs:
       # GitHub Actions do not automatically checkout your projects. If you need the code
       # you need to check it out.
       - name: Checkout
-        uses: actions/checkout@v3.6.0
+        uses: actions/checkout@v4.0.0
 
       - name: Prepare
         id: prep