diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 6407e6c9..2d467186 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -43,7 +43,7 @@ jobs:
       - name: Install matplotlib
         run: if [ "$RUNNER_OS" = "Linux" ]; then sudo apt-get install -y python3-matplotlib; fi
         shell: bash
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}
@@ -83,7 +83,7 @@ jobs:
     - name: Install matplotlib
       run: if [ "$RUNNER_OS" = "Linux" ]; then sudo apt-get install -y python3-matplotlib; fi
       shell: bash
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - uses: julia-actions/setup-julia@v2
       with:
         arch: ${{ matrix.julia_arch }}
@@ -107,7 +107,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 40
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
       - name: Build PyCall
         run: julia --project=docs/ -e 'ENV["PYTHON"]=""; using Pkg; Pkg.develop(PackageSpec(path=pwd())); Pkg.instantiate(); Pkg.build("PyCall")'