diff --git a/.github/workflows/TestJuliaVersions.yml b/.github/workflows/TestJuliaVersions.yml
index fef8ddc..946441d 100644
--- a/.github/workflows/TestJuliaVersions.yml
+++ b/.github/workflows/TestJuliaVersions.yml
@@ -21,7 +21,7 @@ jobs:
         uses: julia-actions/setup-julia@latest
         with:
           version: ${{ matrix.julia-version }}         
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         
 
       - name: Cache preCICE
diff --git a/.github/workflows/format.yml b/.github/workflows/format.yml
index 932aaf5..757e473 100644
--- a/.github/workflows/format.yml
+++ b/.github/workflows/format.yml
@@ -15,7 +15,7 @@ jobs:
         with:
           version: ${{ matrix.julia-version }}
 
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v4
       - name: Install JuliaFormatter and format
         # This will use the latest version by default but you can set the version like so:
         #