diff --git a/Gemfile.lock b/Gemfile.lock
index f277abd..a191655 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -113,6 +113,7 @@ GEM
       addressable (~> 2.3)
     letter_opener (1.4.1)
       launchy (~> 2.2)
+    libv8 (3.16.14.13)
     loofah (2.1.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)