diff --git a/Godeps/Godeps.json b/Godeps/Godeps.json
index a472bae..c828d0f 100644
--- a/Godeps/Godeps.json
+++ b/Godeps/Godeps.json
@@ -1,6 +1,6 @@
 {
 	"ImportPath": "github.com/yudai/gotty",
-	"GoVersion": "go1.6",
+	"GoVersion": "go1.7",
 	"GodepVersion": "v62",
 	"Packages": [
 		"./..."
diff --git a/wercker.yml b/wercker.yml
index 2987dad..ba1c985 100644
--- a/wercker.yml
+++ b/wercker.yml
@@ -1,4 +1,4 @@
-box: golang:1.6.1
+box: golang:1.7.3
 
 build:
   steps: