diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3635e4a..ad544fa 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Harden runner (audit egress)
-        uses: step-security/harden-runner@ab7a9404c0f3da075243ca237b5fac12c98deaa5 # v2
+        uses: step-security/harden-runner@9af89fc71515a100421586dfdb3dc9c984fbf411 # v2.19.4
         with:
           egress-policy: audit
 
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index b05aff2..8981408 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -19,7 +19,7 @@ jobs:
       security-events: write # publication des alertes code scanning
     steps:
       - name: Harden runner (audit egress)
-        uses: step-security/harden-runner@ab7a9404c0f3da075243ca237b5fac12c98deaa5 # v2
+        uses: step-security/harden-runner@9af89fc71515a100421586dfdb3dc9c984fbf411 # v2.19.4
         with:
           egress-policy: audit
 
diff --git a/.github/workflows/dependency-review.yml b/.github/workflows/dependency-review.yml
index 538b6b2..b8d925e 100644
--- a/.github/workflows/dependency-review.yml
+++ b/.github/workflows/dependency-review.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Harden runner (audit egress)
-        uses: step-security/harden-runner@ab7a9404c0f3da075243ca237b5fac12c98deaa5 # v2
+        uses: step-security/harden-runner@9af89fc71515a100421586dfdb3dc9c984fbf411 # v2.19.4
         with:
           egress-policy: audit
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index c44dd12..3480de1 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -20,7 +20,7 @@ jobs:
       attestations: write # provenance SLSA
     steps:
       - name: Harden runner (audit egress)
-        uses: step-security/harden-runner@ab7a9404c0f3da075243ca237b5fac12c98deaa5 # v2
+        uses: step-security/harden-runner@9af89fc71515a100421586dfdb3dc9c984fbf411 # v2.19.4
         with:
           egress-policy: audit
 
diff --git a/.github/workflows/scorecard.yml b/.github/workflows/scorecard.yml
index b85bfba..c2ddeea 100644
--- a/.github/workflows/scorecard.yml
+++ b/.github/workflows/scorecard.yml
@@ -18,7 +18,7 @@ jobs:
       id-token: write # publication des résultats (badge OpenSSF)
     steps:
       - name: Harden runner (audit egress)
-        uses: step-security/harden-runner@ab7a9404c0f3da075243ca237b5fac12c98deaa5 # v2
+        uses: step-security/harden-runner@9af89fc71515a100421586dfdb3dc9c984fbf411 # v2.19.4
         with:
           egress-policy: audit