diff --git a/Godeps/Godeps.json b/Godeps/Godeps.json
index af5900cd..18d630f4 100644
--- a/Godeps/Godeps.json
+++ b/Godeps/Godeps.json
@@ -284,7 +284,7 @@
 		},
 		{
 			"ImportPath": "k8s.io/api",
-			"Rev": "d651a1528133"
+			"Rev": "9f642ccb7a30"
 		},
 		{
 			"ImportPath": "k8s.io/apimachinery",
diff --git a/go.mod b/go.mod
index 1e3d30f4..afffe45c 100644
--- a/go.mod
+++ b/go.mod
@@ -26,7 +26,7 @@ require (
 	golang.org/x/oauth2 v0.0.0-20190402181905-9f3314589c9a
 	golang.org/x/time v0.0.0-20161028155119-f51c12702a4d
 	google.golang.org/appengine v1.5.0 // indirect
-	k8s.io/api v0.0.0-20190820101039-d651a1528133
+	k8s.io/api v0.0.0-20190826194732-9f642ccb7a30
 	k8s.io/apimachinery v0.0.0-20190826114657-e31a5531b558
 	k8s.io/klog v0.4.0
 	k8s.io/utils v0.0.0-20190801114015-581e00157fb1
@@ -38,6 +38,6 @@ replace (
 	golang.org/x/sync => golang.org/x/sync v0.0.0-20181108010431-42b317875d0f
 	golang.org/x/sys => golang.org/x/sys v0.0.0-20190209173611-3b5209105503
 	golang.org/x/text => golang.org/x/text v0.3.1-0.20181227161524-e6919f6577db
-	k8s.io/api => k8s.io/api v0.0.0-20190820101039-d651a1528133
+	k8s.io/api => k8s.io/api v0.0.0-20190826194732-9f642ccb7a30
 	k8s.io/apimachinery => k8s.io/apimachinery v0.0.0-20190826114657-e31a5531b558
 )
diff --git a/go.sum b/go.sum
index 8c7fc442..e577f081 100644
--- a/go.sum
+++ b/go.sum
@@ -144,7 +144,7 @@ gopkg.in/yaml.v2 v2.2.1 h1:mUhvW9EsL+naU5Q3cakzfE91YhliOondGd6ZrsDBHQE=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-k8s.io/api v0.0.0-20190820101039-d651a1528133/go.mod h1:AlhL1I0Xqh5Tyz0HsxjEhy+iKci9l1Qy3UMDFW7iG3A=
+k8s.io/api v0.0.0-20190826194732-9f642ccb7a30/go.mod h1:wKwR91YLONtsDxeJMXqvshPVeRU6ek8/1MfKoDBFqU0=
 k8s.io/apimachinery v0.0.0-20190826114657-e31a5531b558/go.mod h1:EZoIMuAgG/4v58YL+bz0kqnivqupk28fKYxFCa5e6X8=
 k8s.io/gengo v0.0.0-20190128074634-0689ccc1d7d6/go.mod h1:ezvh/TsK7cY6rbqRK0oQQ8IAqLxYwwyPxAX1Pzy0ii0=
 k8s.io/klog v0.0.0-20181102134211-b9b56d5dfc92/go.mod h1:Gq+BEi5rUBO/HRz0bTSXDUcqjScdoY3a9IHpCEIOOfk=
diff --git a/tools/cache/controller.go b/tools/cache/controller.go
index 73e7f8d7..27a1c52c 100644
--- a/tools/cache/controller.go
+++ b/tools/cache/controller.go
@@ -131,6 +131,8 @@ func (c *controller) HasSynced() bool {
 }
 
 func (c *controller) LastSyncResourceVersion() string {
+	c.reflectorMutex.RLock()
+	defer c.reflectorMutex.RUnlock()
 	if c.reflector == nil {
 		return ""
 	}