diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e429ecc..44d918c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,7 +14,7 @@ jobs:
 
     steps:
 
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Install clang-tidy
       run: |
         sudo apt-get install -y clang-tidy-11
@@ -46,7 +46,7 @@ jobs:
        CXX: ${{ matrix.compiler.cpp }}
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Install valgrind
       run: |
          sudo apt install -y valgrind
@@ -76,7 +76,7 @@ jobs:
        CXX: ${{ matrix.compiler.cpp }}
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Build and test
       env:
          CMAKE_OPTIONS: -DCMARK_SHARED=OFF
@@ -97,7 +97,7 @@ jobs:
        CMAKE_OPTIONS: ${{ matrix.cmake_opts }}
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: ilammy/msvc-dev-cmd@v1
     - name: Build and test
       run: |