diff --git a/.github/workflows/abi-ffi-gate.yml b/.github/workflows/abi-ffi-gate.yml
index f647ba6..4779a01 100644
--- a/.github/workflows/abi-ffi-gate.yml
+++ b/.github/workflows/abi-ffi-gate.yml
@@ -20,7 +20,7 @@ jobs:
     name: ABI ↔ FFI structural conformance
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
       - name: Install Julia 1.11.5
         run: |
           curl -fsSL https://julialang-s3.julialang.org/bin/linux/x64/1.11/julia-1.11.5-linux-x86_64.tar.gz -o /tmp/julia.tar.gz
@@ -35,7 +35,7 @@ jobs:
     name: Zig FFI builds + tests (Zig 0.14.0)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
       - name: Install Zig 0.14.0
         run: |
           curl -fsSL https://ziglang.org/download/0.14.0/zig-linux-x86_64-0.14.0.tar.xz -o /tmp/zig.tar.xz
diff --git a/.github/workflows/governance.yml b/.github/workflows/governance.yml
index 13327b9..8776de0 100644
--- a/.github/workflows/governance.yml
+++ b/.github/workflows/governance.yml
@@ -13,4 +13,4 @@ permissions:
 
 jobs:
   governance:
-    uses: hyperpolymath/standards/.github/workflows/governance-reusable.yml@d7c22711e830e1f383846472f6e9b99debdb201e
\ No newline at end of file
+    uses: hyperpolymath/standards/.github/workflows/governance-reusable.yml@81dbf2dd854b1444fd6236fa2352474383b2c2b9
\ No newline at end of file
diff --git a/.github/workflows/hypatia-scan.yml b/.github/workflows/hypatia-scan.yml
index 02b0e9c..9dde27a 100644
--- a/.github/workflows/hypatia-scan.yml
+++ b/.github/workflows/hypatia-scan.yml
@@ -12,8 +12,8 @@ on:
 
 permissions:
   contents: read
-  security-events: read
+  security-events: write
 
 jobs:
   scan:
-    uses: hyperpolymath/standards/.github/workflows/hypatia-scan-reusable.yml@d7c22711e830e1f383846472f6e9b99debdb201e
\ No newline at end of file
+    uses: hyperpolymath/standards/.github/workflows/hypatia-scan-reusable.yml@81dbf2dd854b1444fd6236fa2352474383b2c2b9
\ No newline at end of file
diff --git a/.github/workflows/k9-svc-validation.yml b/.github/workflows/k9-svc-validation.yml
index a70bf04..fa02c3c 100644
--- a/.github/workflows/k9-svc-validation.yml
+++ b/.github/workflows/k9-svc-validation.yml
@@ -18,7 +18,7 @@ jobs:
   validate:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
       - name: Validate contractiles
         run: |
           #!/bin/bash
diff --git a/.github/workflows/scorecard.yml b/.github/workflows/scorecard.yml
index 4ecc2ad..b97e2cb 100644
--- a/.github/workflows/scorecard.yml
+++ b/.github/workflows/scorecard.yml
@@ -13,7 +13,7 @@ permissions:
 
 jobs:
   scorecard:
-    uses: hyperpolymath/standards/.github/workflows/scorecard-reusable.yml@d7c22711e830e1f383846472f6e9b99debdb201e
+    uses: hyperpolymath/standards/.github/workflows/scorecard-reusable.yml@81dbf2dd854b1444fd6236fa2352474383b2c2b9
     permissions:
       contents: read
       security-events: write