diff --git a/Gemfile.lock b/Gemfile.lock
index 5d87653..cd91500 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -70,7 +70,7 @@ GEM
     erubis (2.7.0)
     eventmachine (0.12.10)
     eventmachine (0.12.10-java)
-    execjs (1.2.12)
+    execjs (1.2.13)
       multi_json (~> 1.0)
     fastercsv (1.5.4)
     geokit (1.6.0)