diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 287b20b..4a05012 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,12 +23,12 @@ jobs:
         with:
           args: .github/workflows/ci.yml .github/workflows/plugin-scan.yml
       - name: Audit workflow security with zizmor
-        uses: zizmorcore/zizmor-action@cc914d7f3750a2d13d75c7f184a1060aa0e9d482 # v0.6.4
+        uses: zizmorcore/zizmor-action@85b2b9fb8e3325e7a23d7d0a9d7ba5ae0f999e3e # v0.7.1
         with:
           advanced-security: false
           inputs: .github/workflows/ci.yml .github/workflows/plugin-scan.yml
           min-severity: low
-          version: "1.27.0"
+          version: "1.28.0"
 
   lint-python:
     runs-on: ubuntu-latest
@@ -128,7 +128,7 @@ jobs:
         with:
           sarif: "tt-gate.sarif"
       - name: Publish findings as code-scanning annotations
-        uses: github/codeql-action/upload-sarif@24c54180a607b1449ed407dd24f251e4e9147c8d # v4.38.3
+        uses: github/codeql-action/upload-sarif@6f2ac81f5cd81fe351a197ba0b00d91d03cd2aee # v4.39.0
         with:
           sarif_file: tt-gate.sarif
 
diff --git a/.github/workflows/plugin-scan.yml b/.github/workflows/plugin-scan.yml
index cf0dc5f..041360d 100644
--- a/.github/workflows/plugin-scan.yml
+++ b/.github/workflows/plugin-scan.yml
@@ -18,7 +18,7 @@ jobs:
         with:
           persist-credentials: false
       - name: Scan plugin with HOL Guard
-        uses: hashgraph-online/ai-plugin-scanner-action@390cfe83a5a99b0a8d97d93b438cb99f23ce177e # v1.2.783
+        uses: hashgraph-online/ai-plugin-scanner-action@1fb7eef6f7387abd0512e91ee8f336ac8bf07c95 # v1.2.789
         with:
           plugin_dir: "."
           fail_on_severity: high
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 08ed2c0..1864d8c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## Unreleased
+
+- Update the workflow security audit to zizmor 1.28.0, supported by zizmor-action v0.7.1.
+
 ## 1.30.3 — 2026-09-30
 
 - Fix the Codex-only dashboard launcher and report version lookup without requiring Claude manifests.