diff --git a/.github/workflows/conda.yml b/.github/workflows/conda.yml
index 6e642b8..8f3e751 100644
--- a/.github/workflows/conda.yml
+++ b/.github/workflows/conda.yml
@@ -23,7 +23,7 @@ jobs:
         shell: "bash -l {0}"
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           submodules: true
 
diff --git a/.github/workflows/format.yml b/.github/workflows/format.yml
index c792242..1ab8225 100644
--- a/.github/workflows/format.yml
+++ b/.github/workflows/format.yml
@@ -15,7 +15,7 @@ jobs:
     name: Format
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: actions/setup-python@v4
       with:
         python-version: "3.x"
diff --git a/.github/workflows/pip.yml b/.github/workflows/pip.yml
index 10cea9d..7461fe3 100644
--- a/.github/workflows/pip.yml
+++ b/.github/workflows/pip.yml
@@ -18,7 +18,7 @@ jobs:
     runs-on: ${{ matrix.platform }}
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         submodules: true
 
diff --git a/.github/workflows/wheels.yml b/.github/workflows/wheels.yml
index 49daf80..e58c238 100644
--- a/.github/workflows/wheels.yml
+++ b/.github/workflows/wheels.yml
@@ -15,7 +15,7 @@ jobs:
     name: Build SDist
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         submodules: true
 
@@ -39,7 +39,7 @@ jobs:
         os: [ubuntu-latest, windows-latest, macos-latest]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         submodules: true