diff --git a/Gemfile.lock b/Gemfile.lock
index 55cc4e8..08a5e89 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -37,7 +37,7 @@ GEM
     rufus-lru (1.1.0)
     treetop (1.6.8)
       polyglot (~> 0.3)
-    yajl-ruby (1.3.1)
+    yajl-ruby (1.4.2)
 
 PLATFORMS
   ruby