diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 1d8d56a..15eee60 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -28,7 +28,7 @@ jobs:
         arch:
           - x64
     steps:
-      - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744
+      - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b
         with:
           persist-credentials: false
       - uses: julia-actions/setup-julia@f40c4b69330df1d22e7590c12e76dc2f9c66e0bc
diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index 6e50840..63b88d9 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -24,7 +24,7 @@ jobs:
       pull-requests: write
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
+      - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b
       - uses: julia-actions/setup-julia@f40c4b69330df1d22e7590c12e76dc2f9c66e0bc
         with:
           version: '1'
diff --git a/.github/workflows/readme.yml b/.github/workflows/readme.yml
index 4ba0237..e6bc610 100644
--- a/.github/workflows/readme.yml
+++ b/.github/workflows/readme.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v4.1.4
       - uses: julia-actions/setup-julia@v2
         with:
           version: '1'