diff --git a/.github/workflows/Codespell.yml b/.github/workflows/Codespell.yml
index a021140..eef0e65 100644
--- a/.github/workflows/Codespell.yml
+++ b/.github/workflows/Codespell.yml
@@ -11,7 +11,7 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v3.5.2
+      uses: actions/checkout@v4.1.1
 
     - name: codespell
       uses: codespell-project/actions-codespell@master
diff --git a/.github/workflows/Docs.yml b/.github/workflows/Docs.yml
index 7b0288e..caab213 100644
--- a/.github/workflows/Docs.yml
+++ b/.github/workflows/Docs.yml
@@ -23,7 +23,7 @@ jobs:
         && pip3 install sphinx-sitemap
 
     - name: Checkout
-      uses: actions/checkout@v3.5.2
+      uses: actions/checkout@v4.1.1
 
     - name: Install cmake
       uses: jwlawson/actions-setup-cmake@v1.14
diff --git a/.github/workflows/Linux-Clang.yml b/.github/workflows/Linux-Clang.yml
index 7a3e599..7afa1df 100644
--- a/.github/workflows/Linux-Clang.yml
+++ b/.github/workflows/Linux-Clang.yml
@@ -25,7 +25,7 @@ jobs:
     steps:
 
     - name: Checkout
-      uses: actions/checkout@v3.5.2
+      uses: actions/checkout@v4.1.1
 
     - name: Setup CMake
       uses: jwlawson/actions-setup-cmake@v1.14
diff --git a/.github/workflows/Linux-GCC.yml b/.github/workflows/Linux-GCC.yml
index 5fd94d0..6ede268 100644
--- a/.github/workflows/Linux-GCC.yml
+++ b/.github/workflows/Linux-GCC.yml
@@ -22,7 +22,7 @@ jobs:
     steps:
 
     - name: Checkout
-      uses: actions/checkout@v3.5.2
+      uses: actions/checkout@v4.1.1
 
     - name: Setup CMake
       uses: jwlawson/actions-setup-cmake@v1.14
diff --git a/.github/workflows/MacOS-Clang.yml b/.github/workflows/MacOS-Clang.yml
index 6b2aa46..b7ff2d8 100644
--- a/.github/workflows/MacOS-Clang.yml
+++ b/.github/workflows/MacOS-Clang.yml
@@ -17,7 +17,7 @@ jobs:
     steps:
 
     - name: Checkout
-      uses: actions/checkout@v3.5.2
+      uses: actions/checkout@v4.1.1
 
     - name: Setup CMake
       uses: jwlawson/actions-setup-cmake@v1.14
diff --git a/.github/workflows/MacOS-GCC.yml b/.github/workflows/MacOS-GCC.yml
index d3bcf96..14a7af1 100644
--- a/.github/workflows/MacOS-GCC.yml
+++ b/.github/workflows/MacOS-GCC.yml
@@ -22,7 +22,7 @@ jobs:
     steps:
 
     - name: Checkout
-      uses: actions/checkout@v3.5.2
+      uses: actions/checkout@v4.1.1
 
     - name: Setup CMake
       uses: jwlawson/actions-setup-cmake@v1.14
diff --git a/.github/workflows/Windows-MSVC.yml b/.github/workflows/Windows-MSVC.yml
index 0ee7ae6..5c2efd1 100644
--- a/.github/workflows/Windows-MSVC.yml
+++ b/.github/workflows/Windows-MSVC.yml
@@ -25,7 +25,7 @@ jobs:
         cmake-version: '${{env.CMAKE_VERSION}}'
 
     - name: Checkout
-      uses: actions/checkout@v3.5.2
+      uses: actions/checkout@v4.1.1
 
     - name: Configure
       run: cmake -S ${{ github.workspace }} -B ${{ env.CMAKE_BUILD_PREFIX }} -D BUILD_TESTS=OFF
diff --git a/.github/workflows/Windows-MSYS2.yml b/.github/workflows/Windows-MSYS2.yml
index eb88443..3d6b821 100644
--- a/.github/workflows/Windows-MSYS2.yml
+++ b/.github/workflows/Windows-MSYS2.yml
@@ -24,7 +24,7 @@ jobs:
     steps:
 
     - name: Checkout
-      uses: actions/checkout@v3.5.2
+      uses: actions/checkout@v4.1.1
 
     - name: Install MSYS2
       uses: msys2/setup-msys2@v2