diff --git a/go.mod b/go.mod
index 3aef734..87e8b02 100644
--- a/go.mod
+++ b/go.mod
@@ -11,4 +11,4 @@ require (
 	gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15
 )
 
-go 1.13
+go 1.15