diff --git a/api/v1beta1/redissentinel_types.go b/api/v1beta1/redissentinel_types.go
index ce8d3a196..df9bc8fc1 100644
--- a/api/v1beta1/redissentinel_types.go
+++ b/api/v1beta1/redissentinel_types.go
@@ -7,7 +7,6 @@ import (
 
 type RedisSentinelSpec struct {
 	// +kubebuilder:validation:Minimum=1
-	// +kubebuilder:validation:Not=2
 	// +kubebuilder:default=3
 	Size                *int32                     `json:"clusterSize"`
 	KubernetesConfig    KubernetesConfig           `json:"kubernetesConfig"`