diff --git a/Gopkg.toml b/Gopkg.toml
index 249db59..c2db89a 100644
--- a/Gopkg.toml
+++ b/Gopkg.toml
@@ -32,7 +32,7 @@
 
 [[constraint]]
   name = "github.com/spf13/cast"
-  version = "1.1.0"
+  branch = "master"
 
 [[constraint]]
   branch = "master"