diff --git a/kubernetes/apps/monitoring/gatus/app/helmrelease.yaml b/kubernetes/apps/monitoring/gatus/app/helmrelease.yaml
index ba3805ce0..3982d420d 100644
--- a/kubernetes/apps/monitoring/gatus/app/helmrelease.yaml
+++ b/kubernetes/apps/monitoring/gatus/app/helmrelease.yaml
@@ -45,7 +45,7 @@ spec:
             order: 2
             image: &configSyncImage
               repository: ghcr.io/kiwigrid/k8s-sidecar
-              tag: 1.25.3
+              tag: 1.25.4@sha256:cccfe4f9eaf2e2c63762e4ac261a3f353e38253da77027485178978e08df95d0
             env:
               FOLDER: /config
               LABEL: gatus.io/enabled