diff --git a/.github/workflows/mirror.yml b/.github/workflows/mirror.yml
index d97455a..c30063e 100644
--- a/.github/workflows/mirror.yml
+++ b/.github/workflows/mirror.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     if: vars.GITLAB_MIRROR_ENABLED == 'true'
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@0c366fd6a839edf440554fa01a7085ccba70ac98 # v4
         with:
           fetch-depth: 0
 
@@ -32,7 +32,7 @@ jobs:
     runs-on: ubuntu-latest
     if: vars.BITBUCKET_MIRROR_ENABLED == 'true'
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@0c366fd6a839edf440554fa01a7085ccba70ac98 # v4
         with:
           fetch-depth: 0
 
@@ -50,7 +50,7 @@ jobs:
     runs-on: ubuntu-latest
     if: vars.CODEBERG_MIRROR_ENABLED == 'true'
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@0c366fd6a839edf440554fa01a7085ccba70ac98 # v4
         with:
           fetch-depth: 0
 
@@ -68,7 +68,7 @@ jobs:
     runs-on: ubuntu-latest
     if: vars.SOURCEHUT_MIRROR_ENABLED == 'true'
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@0c366fd6a839edf440554fa01a7085ccba70ac98 # v4
         with:
           fetch-depth: 0
 
@@ -86,7 +86,7 @@ jobs:
     runs-on: ubuntu-latest
     if: vars.DISROOT_MIRROR_ENABLED == 'true'
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@0c366fd6a839edf440554fa01a7085ccba70ac98 # v4
         with:
           fetch-depth: 0
 
@@ -104,7 +104,7 @@ jobs:
     runs-on: ubuntu-latest
     if: vars.GITEA_MIRROR_ENABLED == 'true'
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@0c366fd6a839edf440554fa01a7085ccba70ac98 # v4
         with:
           fetch-depth: 0
 
@@ -122,7 +122,7 @@ jobs:
     runs-on: ubuntu-latest
     if: vars.RADICLE_MIRROR_ENABLED == 'true'
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@0c366fd6a839edf440554fa01a7085ccba70ac98 # v4
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/scorecard-enforcer.yml b/.github/workflows/scorecard-enforcer.yml
index 58b1f09..e18f75e 100644
--- a/.github/workflows/scorecard-enforcer.yml
+++ b/.github/workflows/scorecard-enforcer.yml
@@ -18,19 +18,19 @@ jobs:
       security-events: write
       id-token: write  # For OIDC
     steps:
-      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
+      - uses: actions/checkout@0c366fd6a839edf440554fa01a7085ccba70ac98 # v4
         with:
           persist-credentials: false
 
       - name: Run Scorecard
-        uses: ossf/scorecard-action@62b2cac7ed8198b15735ed49ab1e5cf35480ba46 # v2.4.0
+        uses: ossf/scorecard-action@4eaacf0543bb3f2c246792bd56e8cdeffafb205a # v2.4.3
         with:
           results_file: results.sarif
           results_format: sarif
           publish_results: true
 
       - name: Upload SARIF
-        uses: github/codeql-action/upload-sarif@662472033e021d55d94146f66f6058822b0b39fd # v3
+        uses: github/codeql-action/upload-sarif@cdefb33c0f6224e58673d9004f47f7cb3e328b89 # v3
         with:
           sarif_file: results.sarif
 
@@ -53,7 +53,7 @@ jobs:
   check-critical:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
+      - uses: actions/checkout@0c366fd6a839edf440554fa01a7085ccba70ac98 # v4
 
       - name: Check SECURITY.md exists
         run: |
diff --git a/.github/workflows/scorecard.yml b/.github/workflows/scorecard.yml
index 6625c9f..8d2fe3e 100644
--- a/.github/workflows/scorecard.yml
+++ b/.github/workflows/scorecard.yml
@@ -26,6 +26,6 @@ jobs:
           results_format: sarif
       
       - name: Upload results
-        uses: github/codeql-action/upload-sarif@v4
+        uses: github/codeql-action/upload-sarif@v4.31.10
         with:
           sarif_file: results.sarif
diff --git a/.github/workflows/secret-scanner.yml b/.github/workflows/secret-scanner.yml
index 051fecf..1486c72 100644
--- a/.github/workflows/secret-scanner.yml
+++ b/.github/workflows/secret-scanner.yml
@@ -13,7 +13,7 @@ jobs:
   trufflehog:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
+      - uses: actions/checkout@0c366fd6a839edf440554fa01a7085ccba70ac98 # v4
         with:
           fetch-depth: 0  # Full history for scanning
 
@@ -25,7 +25,7 @@ jobs:
   gitleaks:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
+      - uses: actions/checkout@0c366fd6a839edf440554fa01a7085ccba70ac98 # v4
         with:
           fetch-depth: 0
 
@@ -39,7 +39,7 @@ jobs:
     runs-on: ubuntu-latest
     if: hashFiles('**/Cargo.toml') != ''
     steps:
-      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
+      - uses: actions/checkout@0c366fd6a839edf440554fa01a7085ccba70ac98 # v4
 
       - name: Check for hardcoded secrets in Rust
         run: |
diff --git a/.github/workflows/workflow-linter.yml b/.github/workflows/workflow-linter.yml
index a26ae46..1103b32 100644
--- a/.github/workflows/workflow-linter.yml
+++ b/.github/workflows/workflow-linter.yml
@@ -22,7 +22,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+        uses: actions/checkout@0c366fd6a839edf440554fa01a7085ccba70ac98 # v6.0.1
 
       - name: Check SPDX Headers
         run: |
@@ -72,7 +72,7 @@ jobs:
             echo "$unpinned"
             echo ""
             echo "Replace version tags with SHA pins, e.g.:"
-            echo "  uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v4.1.1"
+            echo "  uses: actions/checkout@0c366fd6a839edf440554fa01a7085ccba70ac98 # v4.1.1"
             exit 1
           fi
           echo "All actions are SHA-pinned"