diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 39e3412..7502cfe 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -39,7 +39,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL
diff --git a/.github/workflows/pypi.yml b/.github/workflows/pypi.yml
index 851e6e7..ca74451 100644
--- a/.github/workflows/pypi.yml
+++ b/.github/workflows/pypi.yml
@@ -8,7 +8,7 @@ jobs:
     name: "Build and publish release"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Install uv
         uses: astral-sh/setup-uv@v6
         with:
diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index ba0818b..8b2e876 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -25,7 +25,7 @@ jobs:
       #       check-out repo and set-up python
       #----------------------------------------------
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Setup uv
         uses: astral-sh/setup-uv@v6
       - name: Setup Python