diff --git a/Gemfile.lock b/Gemfile.lock
index b3e9e90..f738f31 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -94,7 +94,7 @@ GEM
     globalid (0.4.2)
       activesupport (>= 4.2.0)
     hashie (3.6.0)
-    high_voltage (3.1.0)
+    high_voltage (4.0.0)
     i18n (1.6.0)
       concurrent-ruby (~> 1.0)
     jbuilder (2.8.0)