diff --git a/k8s/dev/backend-deployment.yaml b/k8s/dev/backend-deployment.yaml
index ae3c95a..77454c3 100644
--- a/k8s/dev/backend-deployment.yaml
+++ b/k8s/dev/backend-deployment.yaml
@@ -44,5 +44,3 @@ spec:
               port: 8521
             initialDelaySeconds: 5
             periodSeconds: 10
-      imagePullSecrets:
-        - name: harbor-registry
diff --git a/k8s/hml/backend-deployment.yaml b/k8s/hml/backend-deployment.yaml
index 3ac4d71..be088e3 100644
--- a/k8s/hml/backend-deployment.yaml
+++ b/k8s/hml/backend-deployment.yaml
@@ -44,5 +44,3 @@ spec:
               port: 8521
             initialDelaySeconds: 5
             periodSeconds: 10
-      imagePullSecrets:
-        - name: harbor-registry
diff --git a/k8s/prd/backend-deployment.yaml b/k8s/prd/backend-deployment.yaml
index ae2073e..82af567 100644
--- a/k8s/prd/backend-deployment.yaml
+++ b/k8s/prd/backend-deployment.yaml
@@ -44,5 +44,3 @@ spec:
               port: 8521
             initialDelaySeconds: 5
             periodSeconds: 10
-      imagePullSecrets:
-        - name: harbor-registry