diff --git a/Gopkg.lock b/Gopkg.lock
index 6ecd6ea..71140b9 100644
--- a/Gopkg.lock
+++ b/Gopkg.lock
@@ -112,12 +112,12 @@
   version = "v1.0.1"
 
 [[projects]]
-  digest = "1:60c6a70caa4381d3bb6c0211b634e1d5288b01dff882501353bf328fde40b375"
+  digest = "1:bdc698c2f611bd436789ce42565d172a0fc38fd3f692d20cd4b288ed314788e9"
   name = "github.com/spf13/viper"
   packages = ["."]
   pruneopts = "NUT"
-  revision = "9e56dacc08fbbf8c9ee2dbc717553c758ce42bc9"
-  version = "v1.3.2"
+  revision = "b5bf975e5823809fb22c7644d008757f78a4259e"
+  version = "v1.4.0"
 
 [[projects]]
   branch = "master"