diff --git a/.github/workflows/check-permissions.yml b/.github/workflows/check-permissions.yml
index 407f612887..a61a37ea4c 100644
--- a/.github/workflows/check-permissions.yml
+++ b/.github/workflows/check-permissions.yml
@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
     - name: Harden the runner (Audit all outbound calls)
-      uses: step-security/harden-runner@v2
+      uses: step-security/harden-runner@0634a2670c59f64b4a01f0f96f84700a4088b9f0 # v2.12.0
       with:
         egress-policy: audit
 
diff --git a/.github/workflows/cleanup-caches-by-a-branch.yml b/.github/workflows/cleanup-caches-by-a-branch.yml
index 3608d8b074..abac0d95e4 100644
--- a/.github/workflows/cleanup-caches-by-a-branch.yml
+++ b/.github/workflows/cleanup-caches-by-a-branch.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@v2
+        uses: step-security/harden-runner@0634a2670c59f64b4a01f0f96f84700a4088b9f0 # v2.12.0
         with:
           egress-policy: audit
 
diff --git a/.github/workflows/fast-forward.yml b/.github/workflows/fast-forward.yml
index f80596a7a6..22dacc429f 100644
--- a/.github/workflows/fast-forward.yml
+++ b/.github/workflows/fast-forward.yml
@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@v2
+        uses: step-security/harden-runner@0634a2670c59f64b4a01f0f96f84700a4088b9f0 # v2.12.0
         with:
           egress-policy: audit
 
diff --git a/.github/workflows/label-for-external-users.yml b/.github/workflows/label-for-external-users.yml
index 02d128179d..f9daa19ad9 100644
--- a/.github/workflows/label-for-external-users.yml
+++ b/.github/workflows/label-for-external-users.yml
@@ -28,7 +28,7 @@ jobs:
 
     steps:
     - name: Harden the runner (Audit all outbound calls)
-      uses: step-security/harden-runner@v2
+      uses: step-security/harden-runner@0634a2670c59f64b4a01f0f96f84700a4088b9f0 # v2.12.0
       with:
         egress-policy: audit
 
@@ -75,7 +75,7 @@ jobs:
 
     steps:
     - name: Harden the runner (Audit all outbound calls)
-      uses: step-security/harden-runner@v2
+      uses: step-security/harden-runner@0634a2670c59f64b4a01f0f96f84700a4088b9f0 # v2.12.0
       with:
         egress-policy: audit
 
diff --git a/.github/workflows/pin-build-tools-image.yml b/.github/workflows/pin-build-tools-image.yml
index f8d8172cb0..82bbc722a7 100644
--- a/.github/workflows/pin-build-tools-image.yml
+++ b/.github/workflows/pin-build-tools-image.yml
@@ -41,7 +41,7 @@ jobs:
 
     steps:
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@v2
+        uses: step-security/harden-runner@0634a2670c59f64b4a01f0f96f84700a4088b9f0 # v2.12.0
         with:
           egress-policy: audit
 
diff --git a/.github/workflows/trigger-e2e-tests.yml b/.github/workflows/trigger-e2e-tests.yml
index ca4c465931..a951b4b258 100644
--- a/.github/workflows/trigger-e2e-tests.yml
+++ b/.github/workflows/trigger-e2e-tests.yml
@@ -35,7 +35,7 @@ jobs:
 
     steps:
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@v2
+        uses: step-security/harden-runner@0634a2670c59f64b4a01f0f96f84700a4088b9f0 # v2.12.0
         with:
           egress-policy: audit
 
@@ -73,7 +73,7 @@ jobs:
         }}
     steps:
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@v2
+        uses: step-security/harden-runner@0634a2670c59f64b4a01f0f96f84700a4088b9f0 # v2.12.0
         with:
           egress-policy: audit