diff --git a/clusters/core/env/production/network-system/step/registration-authority/hr.yaml b/clusters/core/env/production/network-system/step/registration-authority/hr.yaml
index 737a213b6..44dfa8676 100644
--- a/clusters/core/env/production/network-system/step/registration-authority/hr.yaml
+++ b/clusters/core/env/production/network-system/step/registration-authority/hr.yaml
@@ -8,7 +8,7 @@ spec:
   chart:
     spec:
       chart: step-certificates
-      version: 1.28.3
+      version: 1.28.4
       sourceRef:
         kind: HelmRepository
         name: smallstep-charts