diff --git a/.github/workflows/check-upstream-ed25519.yml b/.github/workflows/check-upstream-ed25519.yml
index 727f5c22..5cbcde43 100644
--- a/.github/workflows/check-upstream-ed25519.yml
+++ b/.github/workflows/check-upstream-ed25519.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Check out repository
-      uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac
+      uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
     - name: Test if ed25519 upstream main HEAD is what we expect
       id: test_ed25519
       run: |
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c74b2501..a4dd1cd0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -37,7 +37,7 @@ jobs:
 
     steps:
       - name: Checkout securesystemslib
-        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@61a6322f88396a6271a6ee3565807d608ecaddd1
diff --git a/.github/workflows/test-kms.yml b/.github/workflows/test-kms.yml
index 733dfa4d..b71ee480 100644
--- a/.github/workflows/test-kms.yml
+++ b/.github/workflows/test-kms.yml
@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Checkout securesystemslib
-        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
 
       - name: Set up Python
         uses: actions/setup-python@61a6322f88396a6271a6ee3565807d608ecaddd1
diff --git a/.github/workflows/test-sigstore.yml b/.github/workflows/test-sigstore.yml
index 1f949749..17e43a85 100644
--- a/.github/workflows/test-sigstore.yml
+++ b/.github/workflows/test-sigstore.yml
@@ -19,7 +19,7 @@ jobs:
 
     steps:
       - name: Checkout securesystemslib
-        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
 
       - name: Set up Python
         uses: actions/setup-python@61a6322f88396a6271a6ee3565807d608ecaddd1