diff --git a/Gemfile.lock b/Gemfile.lock
index b2d213a..e2e65fa 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -69,7 +69,7 @@ GEM
     crass (1.0.6)
     diff-lcs (1.2.5)
     erubis (2.7.0)
-    execjs (2.5.2)
+    execjs (2.8.1)
     ffi (1.11.1)
     globalid (0.3.6)
       activesupport (>= 4.1.0)
@@ -175,7 +175,7 @@ GEM
     tilt (1.4.1)
     tzinfo (1.2.10)
       thread_safe (~> 0.1)
-    uglifier (2.7.1)
+    uglifier (2.7.2)
       execjs (>= 0.3.0)
       json (>= 1.8.0)
     websocket (1.2.2)