diff --git a/.github/workflows/build_and_test.yml b/.github/workflows/build_and_test.yml
index f17cc08..131061e 100644
--- a/.github/workflows/build_and_test.yml
+++ b/.github/workflows/build_and_test.yml
@@ -35,7 +35,7 @@ jobs:
         os: ['ubuntu-22.04', 'macos-12', 'windows-2022']
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         fetch-depth: '0'
     - run: git fetch --depth=1 origin +refs/tags/*:refs/tags/* +refs/heads/*:refs/remotes/origin/*
@@ -155,7 +155,7 @@ jobs:
     needs: publish_to_pypi
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         fetch-depth: '0'
     - name: Set up Python 3.10
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index d171fb9..4544fd6 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -13,7 +13,7 @@ jobs:
     name: build docs
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python 3.10
       uses: actions/setup-python@v4
       with:
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 8d2341f..abb0106 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-22.04
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python 3.x
       uses: actions/setup-python@v4
       with: