diff --git a/operator/redisfailover/service/generator.go b/operator/redisfailover/service/generator.go
index 5ef5b7a65..6f08b7806 100644
--- a/operator/redisfailover/service/generator.go
+++ b/operator/redisfailover/service/generator.go
@@ -317,11 +317,11 @@ func generateSentinelDeployment(rf *redisfailoverv1alpha2.RedisFailover, labels
 							Resources: corev1.ResourceRequirements{
 								Limits: corev1.ResourceList{
 									corev1.ResourceCPU:    resource.MustParse("10m"),
-									corev1.ResourceMemory: resource.MustParse("10Mi"),
+									corev1.ResourceMemory: resource.MustParse("16Mi"),
 								},
 								Requests: corev1.ResourceList{
 									corev1.ResourceCPU:    resource.MustParse("10m"),
-									corev1.ResourceMemory: resource.MustParse("10Mi"),
+									corev1.ResourceMemory: resource.MustParse("16Mi"),
 								},
 							},
 						},