diff --git a/.github/workflows/ci_build.yml b/.github/workflows/ci_build.yml
index 1b2a06a5f05..08437b037dc 100644
--- a/.github/workflows/ci_build.yml
+++ b/.github/workflows/ci_build.yml
@@ -112,7 +112,7 @@ jobs:
 
     steps:
       - name: Checkout main repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       # Installation step for Ubuntu
       - name: Configure Ubuntu with ${{ matrix.compiler }}-${{ matrix.version }}
@@ -239,7 +239,7 @@ jobs:
 
     steps:
       - name: Checkout main repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Create TEMP_DIR
         working-directory: ${{ github.workspace }}
@@ -291,7 +291,7 @@ jobs:
 
     steps:
       - name: Checkout main repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Create TEMP_DIR
         working-directory: ${{ github.workspace }}
@@ -353,7 +353,7 @@ jobs:
 
     steps:
       - name: Checkout GH_PAGES_REPO into GH_PAGES_DIR
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           # repository to check out
           repository: ${{ env.GH_PAGES_REPO }}
@@ -435,7 +435,7 @@ jobs:
 
     steps:
       - name: Checkout main repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install doxygen
         run: |
@@ -472,7 +472,7 @@ jobs:
 
     steps:
       - name: Checkout DOXYGEN_REPO into DOXYGEN_DIR
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           # repository to check out
           repository: ${{ env.DOXYGEN_REPO }}
diff --git a/.github/workflows/clang-format-check.yml b/.github/workflows/clang-format-check.yml
index 2bd967fee70..e00c94d00fa 100644
--- a/.github/workflows/clang-format-check.yml
+++ b/.github/workflows/clang-format-check.yml
@@ -16,7 +16,7 @@ jobs:
     name: Check for ${{ matrix.path['check'] }}
           
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Run clang-format style check for C/C++ programs.
         uses: jidicula/clang-format-action@v4.9.0
         with:
diff --git a/.github/workflows/python-ci-wheel.yml b/.github/workflows/python-ci-wheel.yml
index 4eba9e8bbda..740b2047a8b 100644
--- a/.github/workflows/python-ci-wheel.yml
+++ b/.github/workflows/python-ci-wheel.yml
@@ -48,7 +48,7 @@ jobs:
     steps:
       #===============================================#
       # Set up
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -147,7 +147,7 @@ jobs:
     steps:
       #===============================================#
       # Set up
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -224,7 +224,7 @@ jobs:
     steps:
       #===============================================#
       # Set up
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Set up Python 3.9
         uses: actions/setup-python@v4
diff --git a/.github/workflows/tests_build.yml b/.github/workflows/tests_build.yml
index 8080101ed21..042d65eaf72 100644
--- a/.github/workflows/tests_build.yml
+++ b/.github/workflows/tests_build.yml
@@ -45,7 +45,7 @@ jobs:
           echo "OUTPUT_DIR=${{ github.event.pull_request.number }}/${{ env.SHORT_SHA }}" >> $GITHUB_ENV
 
       - name: Checkout GH_PAGES_BRANCH into GH_PAGES_DIR
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           repository: ${{ env.GH_PAGES_REPO }}
           ref: ${{ env.GH_PAGES_BRANCH }}
@@ -67,7 +67,7 @@ jobs:
           python3 -m pip install diffimg jsondiff lxml xmldiff cairosvg
 
       - name: Checkout the dev branch
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           ref: develop
           path: ${{ env.DEV_DIR }}/
@@ -88,7 +88,7 @@ jobs:
           python3 ../../doc/test-suite.py ${{ github.workspace }}/${{env.GH_PAGES_DIR}}/musicxmlTestSuite ${{ github.workspace }}/${{ env.TEMP_DIR }}/${{ env.DEV_DIR }}/
 
       - name: Checkout the PR
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           ref: ${{ github.event.pull_request.head.sha }}
           path: ${{ env.PR_DIR }}/