diff --git a/Gemfile.lock b/Gemfile.lock
index 004dc4e..fe8b557 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -99,7 +99,7 @@ GEM
       http_parser.rb (~> 0.6.0)
     erubis (2.7.0)
     eventmachine (1.0.9.1)
-    execjs (2.6.0)
+    execjs (2.7.0)
     ffi (1.9.10)
     foreman (0.81.0)
       thor (~> 0.19.1)
@@ -112,9 +112,9 @@ GEM
     gherkin (3.2.0)
     globalid (0.3.6)
       activesupport (>= 4.1.0)
-    guard (2.13.0)
+    guard (2.14.0)
       formatador (>= 0.2.4)
-      listen (>= 2.7, <= 4.0)
+      listen (>= 2.7, < 4.0)
       lumberjack (~> 1.0)
       nenv (~> 0.1)
       notiffany (~> 0.0)
@@ -313,7 +313,7 @@ GEM
     unicorn (5.1.0)
       kgio (~> 2.6)
       raindrops (~> 0.7)
-    websocket-driver (0.6.3)
+    websocket-driver (0.6.4)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.2)
     xpath (2.0.0)