diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 68d74ce..2417854 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,7 +20,7 @@ jobs:
             os: windows-latest
             arch: x64
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
       - uses: julia-actions/setup-julia@fa02766e078afaaf09b14210362cee14137e6a32
         with:
           version: ${{ matrix.version }}
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 7926e09..774dd5e 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -12,7 +12,7 @@ jobs:
     env:
       PYTHON: ""
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
       - uses: julia-actions/setup-julia@fa02766e078afaaf09b14210362cee14137e6a32
         with:
           version: '1'