diff --git a/pkg/apis/apps/validation/validation.go b/pkg/apis/apps/validation/validation.go
index cea8e2a3ad1..62f2b31cf50 100644
--- a/pkg/apis/apps/validation/validation.go
+++ b/pkg/apis/apps/validation/validation.go
@@ -111,7 +111,7 @@ func ValidateStatefulSetUpdate(statefulSet, oldStatefulSet *apps.StatefulSet) fi
 	statefulSet.Spec.Template.Spec.Containers = oldStatefulSet.Spec.Template.Spec.Containers
 
 	if !reflect.DeepEqual(statefulSet.Spec, oldStatefulSet.Spec) {
-		allErrs = append(allErrs, field.Forbidden(field.NewPath("spec"), "updates to statefulset spec for fields other than 'replicas' are forbidden."))
+		allErrs = append(allErrs, field.Forbidden(field.NewPath("spec"), "updates to statefulset spec for fields other than 'replicas' and 'containers' is forbidden."))
 	}
 	statefulSet.Spec.Replicas = restoreReplicas
 	statefulSet.Spec.Template.Spec.Containers = restoreContainers