diff --git a/.github/workflows/ci-pr.yaml b/.github/workflows/ci-pr.yaml
index 79c8e69..86649bc 100644
--- a/.github/workflows/ci-pr.yaml
+++ b/.github/workflows/ci-pr.yaml
@@ -29,7 +29,7 @@ jobs:
         uses: frequenz-floss/gh-action-setup-git@v1.0.0
 
       - name: Fetch sources
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: true
 
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index d542d42..708ad17 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -79,7 +79,7 @@ jobs:
         uses: frequenz-floss/gh-action-setup-git@v1.0.0
 
       - name: Fetch sources
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: true
 
@@ -177,7 +177,7 @@ jobs:
         uses: frequenz-floss/gh-action-setup-git@v1.0.0
 
       - name: Fetch sources
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: true
 
@@ -213,7 +213,7 @@ jobs:
         uses: frequenz-floss/gh-action-setup-git@v1.0.0
 
       - name: Fetch sources
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: true