diff --git a/go.mod b/go.mod
index cf56572..fab89a3 100644
--- a/go.mod
+++ b/go.mod
@@ -8,5 +8,5 @@ require (
 	github.com/go-courier/packagesx v1.0.1
 	github.com/go-courier/reflectx v1.3.3
 	github.com/onsi/gomega v1.9.0
-	golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e
+	golang.org/x/tools 332987a829c3
 )