diff --git a/.github/workflows/check_md_links.yml b/.github/workflows/check_md_links.yml
index 4412dc6..7df52a4 100644
--- a/.github/workflows/check_md_links.yml
+++ b/.github/workflows/check_md_links.yml
@@ -14,5 +14,5 @@ jobs:
   markdown-link-check:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: gaurav-nelson/github-action-markdown-link-check@v1
diff --git a/.github/workflows/codespell.yml b/.github/workflows/codespell.yml
index b7ab6ff..9df712a 100644
--- a/.github/workflows/codespell.yml
+++ b/.github/workflows/codespell.yml
@@ -15,5 +15,5 @@ jobs:
   codespell:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: codespell-project/actions-codespell@master
diff --git a/.github/workflows/run_tests.yml b/.github/workflows/run_tests.yml
index 5f78017..5aaa4cc 100644
--- a/.github/workflows/run_tests.yml
+++ b/.github/workflows/run_tests.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         submodules: true
         fetch-depth: 0