diff --git a/operator/redisfailover/service/generator.go b/operator/redisfailover/service/generator.go
index dcc195eab..cfe9029a7 100644
--- a/operator/redisfailover/service/generator.go
+++ b/operator/redisfailover/service/generator.go
@@ -320,11 +320,11 @@ 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"),
 								},
 							},
 						},