diff --git a/.github/workflows/codespell.yml b/.github/workflows/codespell.yml
index 7373affc3..c5e16043e 100644
--- a/.github/workflows/codespell.yml
+++ b/.github/workflows/codespell.yml
@@ -17,6 +17,6 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Codespell
         uses: codespell-project/actions-codespell@v2
diff --git a/.github/workflows/linkcheck.yml b/.github/workflows/linkcheck.yml
index c71fca8db..2ed7e2a5c 100644
--- a/.github/workflows/linkcheck.yml
+++ b/.github/workflows/linkcheck.yml
@@ -16,7 +16,7 @@ jobs:
         python-version: [3.8]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: conda-incubator/setup-miniconda@v2
         with:
           activate-environment: test
diff --git a/.github/workflows/unit_tests.yml b/.github/workflows/unit_tests.yml
index de6b72169..0d8187d75 100644
--- a/.github/workflows/unit_tests.yml
+++ b/.github/workflows/unit_tests.yml
@@ -16,7 +16,7 @@ jobs:
         python-version: [3.8, 3.9]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: conda-incubator/setup-miniconda@v2
         with:
           activate-environment: test
diff --git a/.github/workflows/windows_unit_tests.yml b/.github/workflows/windows_unit_tests.yml
index 25807434c..bc41318fe 100644
--- a/.github/workflows/windows_unit_tests.yml
+++ b/.github/workflows/windows_unit_tests.yml
@@ -20,7 +20,7 @@ jobs:
         python-version: [3.8, 3.9]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: conda-incubator/setup-miniconda@v2
         with:
           activate-environment: test