diff --git a/cmd/kube-controller-manager/app/options/options.go b/cmd/kube-controller-manager/app/options/options.go
index 03a41cbad86..20b94065d01 100644
--- a/cmd/kube-controller-manager/app/options/options.go
+++ b/cmd/kube-controller-manager/app/options/options.go
@@ -66,7 +66,7 @@ func NewCMServer() *CMServer {
 			ConcurrentJobSyncs:                              5,
 			ConcurrentResourceQuotaSyncs:                    5,
 			ConcurrentDeploymentSyncs:                       5,
-			ConcurrentNamespaceSyncs:                        2,
+			ConcurrentNamespaceSyncs:                        5,
 			ConcurrentSATokenSyncs:                          5,
 			LookupCacheSizeForRC:                            4096,
 			LookupCacheSizeForRS:                            4096,