diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index af59fc3..ed49cea 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -30,7 +30,7 @@ jobs:
 
     steps:
       # Actions are pinned to commit SHAs (Dependabot keeps them up to date).
-      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           persist-credentials: false
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index a218c49..bbe0b35 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -18,7 +18,7 @@ jobs:
     environment: release
     steps:
       # Actions are pinned to commit SHAs (Dependabot keeps them up to date).
-      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           persist-credentials: false