diff --git a/.github/workflows/run_tests_matlab.yml b/.github/workflows/run_tests_matlab.yml
index 3752c5c..dac5a02 100644
--- a/.github/workflows/run_tests_matlab.yml
+++ b/.github/workflows/run_tests_matlab.yml
@@ -38,7 +38,7 @@ jobs:
         release: ${{matrix.version}}
 
     - name: Install CPP_ROI
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         submodules: true
         fetch-depth: 0
diff --git a/.github/workflows/run_tests_octave.yml b/.github/workflows/run_tests_octave.yml
index 3839ed3..5b64436 100644
--- a/.github/workflows/run_tests_octave.yml
+++ b/.github/workflows/run_tests_octave.yml
@@ -26,7 +26,7 @@ jobs:
 
     steps:
     - name: Install CPP_ROI
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         submodules: true
         fetch-depth: 0
diff --git a/.github/workflows/validate_cff.yml b/.github/workflows/validate_cff.yml
index 14adad3..bf77d98 100644
--- a/.github/workflows/validate_cff.yml
+++ b/.github/workflows/validate_cff.yml
@@ -21,7 +21,7 @@ jobs:
 
     steps:
 
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       with:
         fetch-depth: 1