Update dependencies to v0.18.20-rc.0 tag
diff --git a/Godeps/Godeps.json b/Godeps/Godeps.json
index 54bb46c..3ea97b8 100644
--- a/Godeps/Godeps.json
+++ b/Godeps/Godeps.json
@@ -224,7 +224,7 @@
 		},
 		{
 			"ImportPath": "k8s.io/apimachinery",
-			"Rev": "44f1264f7b6b"
+			"Rev": "v0.18.20-rc.0"
 		},
 		{
 			"ImportPath": "k8s.io/gengo",
diff --git a/go.mod b/go.mod
index a89a0c1..dbbc4db 100644
--- a/go.mod
+++ b/go.mod
@@ -7,12 +7,12 @@
 require (
 	github.com/gogo/protobuf v1.3.2
 	github.com/stretchr/testify v1.4.0
-	k8s.io/apimachinery v0.0.0-20210518100737-44f1264f7b6b
+	k8s.io/apimachinery v0.18.20-rc.0
 )
 
 replace (
 	golang.org/x/crypto => golang.org/x/crypto v0.0.0-20200220183623-bac4c82f6975
 	golang.org/x/text => golang.org/x/text v0.3.2
 	golang.org/x/tools => golang.org/x/tools v0.0.0-20190821162956-65e3620a7ae7 // pinned to release-branch.go1.13
-	k8s.io/apimachinery => k8s.io/apimachinery v0.0.0-20210518100737-44f1264f7b6b
+	k8s.io/apimachinery => k8s.io/apimachinery v0.18.20-rc.0
 )
diff --git a/go.sum b/go.sum
index 1d00b93..487d5ed 100644
--- a/go.sum
+++ b/go.sum
@@ -96,7 +96,7 @@
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-k8s.io/apimachinery v0.0.0-20210518100737-44f1264f7b6b/go.mod h1:70HIRzSveORLKbatTlXzI2B2UUhbWzbq8Vqyf+HbdUQ=
+k8s.io/apimachinery v0.18.20-rc.0/go.mod h1:70HIRzSveORLKbatTlXzI2B2UUhbWzbq8Vqyf+HbdUQ=
 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=
 k8s.io/klog v1.0.0 h1:Pt+yjF5aB1xDSVbau4VsWe+dQNzA0qv1LlXdC2dF6Q8=