diff --git a/.github/workflows/arma.yml b/.github/workflows/arma.yml
index 2c45ec422a..da5fa29835 100644
--- a/.github/workflows/arma.yml
+++ b/.github/workflows/arma.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout the source code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Validate SQF
       run: python3 tools/sqf_validator.py
     - name: Validate Config
@@ -31,7 +31,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout the source code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Lint (sqflint)
       uses: arma-actions/sqflint@master
       continue-on-error: true # No failure due to many false-positives
@@ -40,7 +40,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout the source code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Setup HEMTT
       uses: arma-actions/hemtt@v1
     - name: Run HEMTT build
diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index 770921c96c..4140138f1e 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout the source code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Install Python packages
       run: |
         pip3 install wheel
@@ -33,7 +33,7 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Extract Dependencies
       run: python3 tools/extract_dependencies.py --markdown
diff --git a/.github/workflows/extensions.yml b/.github/workflows/extensions.yml
index 2fd0c9a4a4..84ea189cca 100644
--- a/.github/workflows/extensions.yml
+++ b/.github/workflows/extensions.yml
@@ -14,7 +14,7 @@ jobs:
 
     steps:
     - name: Checkout the source code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Build
       shell: cmd
       run: |
diff --git a/.github/workflows/pboproject.yml b/.github/workflows/pboproject.yml
index 9df3fd9952..4d3c6703c9 100644
--- a/.github/workflows/pboproject.yml
+++ b/.github/workflows/pboproject.yml
@@ -35,18 +35,18 @@ jobs:
         RHSSAF_URL: ${{ secrets.RHSSAF_URL }}
         RHSUSF_URL: ${{ secrets.RHSUSF_URL }}
     - name: Checkout CBA A3
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         path: x\cba
         ref: master
         repository: CBATeam/CBA_A3.git
     - name: Checkout ACE3
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         path: z\ace
         persist-credentials: false
     - name: Checkout pull request
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       if: ${{ github.event_name == 'pull_request_target' }}
       with:
         path: pullrequest