diff --git a/go.mod b/go.mod
index 5d30cffeb..576e759ae 100644
--- a/go.mod
+++ b/go.mod
@@ -3,6 +3,7 @@ module github.com/jetstack/cert-manager
 go 1.12
 
 require (
+	cloud.google.com/go v0.38.0
 	github.com/Azure/azure-sdk-for-go v21.3.0+incompatible
 	github.com/Azure/go-autorest v11.1.0+incompatible
 	github.com/Microsoft/go-winio v0.4.12 // indirect
@@ -36,8 +37,14 @@ require (
 	github.com/go-openapi/swag v0.19.0 // indirect
 	github.com/go-sql-driver/mysql v1.4.1 // indirect
 	github.com/gocql/gocql v0.0.0-20190402132108-0e1d5de854df // indirect
-	github.com/google/go-github v17.0.0+incompatible // indirect
+	github.com/gogo/protobuf v1.2.0 // indirect
+	github.com/golang/protobuf v1.3.1 // indirect
+	github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db // indirect
+	github.com/google/btree v1.0.0 // indirect
+	github.com/google/go-cmp v0.3.0 // indirect
+	github.com/google/go-github v17.0.0+incompatible
 	github.com/google/go-querystring v1.0.0 // indirect
+	github.com/gorilla/context v1.1.1 // indirect
 	github.com/gorilla/mux v1.6.2
 	github.com/gotestyourself/gotestyourself v2.2.0+incompatible // indirect
 	github.com/hashicorp/go-cleanhttp v0.5.1 // indirect
@@ -48,6 +55,7 @@ require (
 	github.com/hashicorp/go-rootcerts v1.0.0 // indirect
 	github.com/hashicorp/go-uuid v1.0.1 // indirect
 	github.com/hashicorp/go-version v1.1.0 // indirect
+	github.com/hashicorp/golang-lru v0.5.1 // indirect
 	github.com/hashicorp/golang-math-big v0.0.0-20180316142257-561262b71329 // indirect
 	github.com/hashicorp/hcl v1.0.0 // indirect
 	github.com/hashicorp/vault v0.9.6
@@ -85,10 +93,16 @@ require (
 	github.com/stretchr/testify v1.3.0
 	github.com/tent/http-link-go v0.0.0-20130702225549-ac974c61c2f9 // indirect
 	go.uber.org/zap v1.9.1 // indirect
-	golang.org/x/crypto v0.0.0-20190411191339-88737f569e3a
-	golang.org/x/net v0.0.0-20190311183353-d8887717615a
-	golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421
-	google.golang.org/api v0.3.1
+	golang.org/x/crypto v0.0.0-20190426145343-a29dc8fdc734
+	golang.org/x/net v0.0.0-20190502183928-7f726cade0ab
+	golang.org/x/oauth2 v0.0.0-20190402181905-9f3314589c9a
+	golang.org/x/sys v0.0.0-20190502175342-a43fa875dd82 // indirect
+	golang.org/x/text v0.3.2 // indirect
+	golang.org/x/time v0.0.0-20190308202827-9d24e82272b4 // indirect
+	golang.org/x/tools v0.0.0-20190501045030-23463209683d // indirect
+	google.golang.org/api v0.4.0
+	google.golang.org/genproto v0.0.0-20190502173448-54afdca5d873 // indirect
+	google.golang.org/grpc v1.20.1 // indirect
 	gopkg.in/ini.v1 v1.42.0 // indirect
 	gopkg.in/mgo.v2 v2.0.0-20180705113604-9856a29383ce // indirect
 	gopkg.in/ory-am/dockertest.v3 v3.3.4 // indirect