diff --git a/Gemfile.lock b/Gemfile.lock
index 6c02921..f87a67c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -152,7 +152,7 @@ GEM
     json (1.8.6)
     launchy (2.4.3)
       addressable (~> 2.3)
-    libv8 (3.16.14.17)
+    libv8 (3.16.14.19)
     listen (3.0.8)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
@@ -314,4 +314,4 @@ RUBY VERSION
    ruby 2.4.2p198
 
 BUNDLED WITH
-   1.16.0
+   1.17.1