diff --git a/.github/workflows/benchmark-regressions.yml b/.github/workflows/benchmark-regressions.yml
index 982f9e21..3a20baaf 100644
--- a/.github/workflows/benchmark-regressions.yml
+++ b/.github/workflows/benchmark-regressions.yml
@@ -31,7 +31,7 @@ jobs:
       event: ${{ steps.gate.outputs.event }}
       bench_matrix: ${{ steps.bench-matrix.outputs.bench_matrix }}
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
       - name: Setup Rust
         uses: leynos/shared-actions/.github/actions/setup-rust@aebb3f5b831102e2a10ef909c83d7d50ea86c332
       - name: Resolve benchmark CI mode
@@ -61,7 +61,7 @@ jobs:
       CHUTORO_BENCH_HNSW_RECALL_REPORT: '0'
       CHUTORO_BENCH_HNSW_CLUSTER_QUALITY_REPORT: '0'
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
       - name: Setup Rust
         uses: leynos/shared-actions/.github/actions/setup-rust@aebb3f5b831102e2a10ef909c83d7d50ea86c332
       - name: Run benchmark discovery smoke check
@@ -93,7 +93,7 @@ jobs:
       CHUTORO_BENCH_HNSW_RECALL_REPORT: '0'
       CHUTORO_BENCH_HNSW_CLUSTER_QUALITY_REPORT: '0'
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
         with:
           fetch-depth: 2
       - name: Setup Rust
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e2c33b1d..c4d1057e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,7 +14,7 @@ jobs:
       CARGO_TERM_COLOR: always
       BUILD_PROFILE: debug
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
       - name: Setup Rust
         uses: leynos/shared-actions/.github/actions/setup-rust@aebb3f5b831102e2a10ef909c83d7d50ea86c332
       - name: Format
@@ -50,7 +50,7 @@ jobs:
     env:
       CARGO_TERM_COLOR: always
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
       - name: Install Verus
         run: scripts/install-verus.sh
         env:
diff --git a/.github/workflows/nightly-kani.yml b/.github/workflows/nightly-kani.yml
index 4e853218..85c0cb3a 100644
--- a/.github/workflows/nightly-kani.yml
+++ b/.github/workflows/nightly-kani.yml
@@ -24,7 +24,7 @@ jobs:
     env:
       CARGO_TERM_COLOR: always
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
         with:
           ref: main
       - name: Setup Rust
diff --git a/.github/workflows/property-tests.yml b/.github/workflows/property-tests.yml
index 7184e163..6d5dbbe2 100644
--- a/.github/workflows/property-tests.yml
+++ b/.github/workflows/property-tests.yml
@@ -36,7 +36,7 @@ jobs:
       CHUTORO_HNSW_PBT_MIN_MAX_CONNECTIONS: "12"
     steps:
       - &checkout_step
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
       - &setup_rust_step
         name: Setup Rust
         uses: leynos/shared-actions/.github/actions/setup-rust@aebb3f5b831102e2a10ef909c83d7d50ea86c332