diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8764091..cb9768f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,7 +25,7 @@ jobs:
     timeout-minutes: 10
     steps:
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920 # v2.20.0
+        uses: step-security/harden-runner@351661ca32ac09a36dc5ee2d536e3128f2a3c8ed # v2.22.0
         with:
           egress-policy: audit
 
@@ -52,7 +52,7 @@ jobs:
         go: [oldstable, stable]
     steps:
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920 # v2.20.0
+        uses: step-security/harden-runner@351661ca32ac09a36dc5ee2d536e3128f2a3c8ed # v2.22.0
         with:
           egress-policy: audit
 
@@ -87,7 +87,7 @@ jobs:
           - { target: windows/arm64, runs-on: windows-11-arm }
     steps:
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920 # v2.20.0
+        uses: step-security/harden-runner@351661ca32ac09a36dc5ee2d536e3128f2a3c8ed # v2.22.0
         with:
           egress-policy: audit
 
@@ -112,7 +112,7 @@ jobs:
     timeout-minutes: 15
     steps:
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920 # v2.20.0
+        uses: step-security/harden-runner@351661ca32ac09a36dc5ee2d536e3128f2a3c8ed # v2.22.0
         with:
           egress-policy: audit
 
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 5a804af..61ad58c 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -39,7 +39,7 @@ jobs:
             build-mode: autobuild
     steps:
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920 # v2.20.0
+        uses: step-security/harden-runner@351661ca32ac09a36dc5ee2d536e3128f2a3c8ed # v2.22.0
         with:
           egress-policy: audit
 
diff --git a/.github/workflows/release-please.yml b/.github/workflows/release-please.yml
index a83e50c..a366914 100644
--- a/.github/workflows/release-please.yml
+++ b/.github/workflows/release-please.yml
@@ -29,7 +29,7 @@ jobs:
       # it live. GitHub freezes a release and its assets together at publish, so
       # assets cannot be added to an already-published (immutable) release.
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920 # v2.20.0
+        uses: step-security/harden-runner@351661ca32ac09a36dc5ee2d536e3128f2a3c8ed # v2.22.0
         with:
           egress-policy: audit
 
@@ -66,7 +66,7 @@ jobs:
           - { goos: windows, goarch: arm64 }
     steps:
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920 # v2.20.0
+        uses: step-security/harden-runner@351661ca32ac09a36dc5ee2d536e3128f2a3c8ed # v2.22.0
         with:
           egress-policy: audit
 
@@ -143,7 +143,7 @@ jobs:
       # (e.g. v1.0.0-rc.1) is published as a prerelease and never marked Latest;
       # a final vX.Y.Z is the inverse.
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920 # v2.20.0
+        uses: step-security/harden-runner@351661ca32ac09a36dc5ee2d536e3128f2a3c8ed # v2.22.0
         with:
           egress-policy: audit