diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index f8ae994..3f88398 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -39,12 +39,12 @@ jobs:
         uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@b96794f015dfd88f77b49b1c93e0fa7110f94c63 # v3
+        uses: github/codeql-action/init@1c5b675653bb5c22dbe9b12b556ec555138e09fd # v3
         with:
           languages: ${{ matrix.language }}
           build-mode: ${{ matrix.build-mode }}
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@b96794f015dfd88f77b49b1c93e0fa7110f94c63 # v3
+        uses: github/codeql-action/analyze@1c5b675653bb5c22dbe9b12b556ec555138e09fd # v3
         with:
           category: "/language:${{ matrix.language }}"
diff --git a/.github/workflows/hypatia-scan.yml b/.github/workflows/hypatia-scan.yml
index af7b824..e8ccee9 100644
--- a/.github/workflows/hypatia-scan.yml
+++ b/.github/workflows/hypatia-scan.yml
@@ -242,7 +242,7 @@ jobs:
           always() &&
           (github.event_name != 'pull_request' ||
            github.event.pull_request.head.repo.fork != true)
-        uses: github/codeql-action/upload-sarif@b96794f015dfd88f77b49b1c93e0fa7110f94c63 # v3.28.1
+        uses: github/codeql-action/upload-sarif@1c5b675653bb5c22dbe9b12b556ec555138e09fd # v3.28.1
         with:
           sarif_file: hypatia.sarif
           # Distinct category so Hypatia results coexist with CodeQL's
diff --git a/.github/workflows/mirror.yml b/.github/workflows/mirror.yml
index 87af3d3..cac7d9b 100644
--- a/.github/workflows/mirror.yml
+++ b/.github/workflows/mirror.yml
@@ -141,7 +141,7 @@ jobs:
           fetch-depth: 0
 
       - name: Setup Rust
-        uses: dtolnay/rust-toolchain@6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772 # stable
+        uses: dtolnay/rust-toolchain@02cb101ec7c40f2c49e1d9714d64511d8e1b74de # stable
         with:
           toolchain: stable
 
diff --git a/.github/workflows/secret-scanner.yml b/.github/workflows/secret-scanner.yml
index c66fd34..6c5f276 100644
--- a/.github/workflows/secret-scanner.yml
+++ b/.github/workflows/secret-scanner.yml
@@ -28,7 +28,7 @@ jobs:
           fetch-depth: 0  # Full history for scanning
 
       - name: TruffleHog Secret Scan
-        uses: trufflesecurity/trufflehog@f714bf454f350590f4a24c3ddb1aef02c35bf5b6 # v3
+        uses: trufflesecurity/trufflehog@a5f3de55cc2065ae4dde8fee24076f137fd62fcf # v3
         with:
           # The v3 action injects --fail automatically on pull_request events.
           # Passing --fail here triggers "flag 'fail' cannot be repeated".