diff --git a/Gemfile.lock b/Gemfile.lock
index 1d42a9c..dd9e825 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -108,7 +108,7 @@ GEM
       trollop (~> 2.0)
     gherkin (2.12.2)
       multi_json (~> 1.3)
-    guard (2.7.1)
+    guard (2.8.2)
       formatador (>= 0.2.4)
       listen (~> 2.7)
       lumberjack (~> 1.0)
@@ -124,8 +124,8 @@ GEM
     guard-rspec (4.3.1)
       guard (~> 2.1)
       rspec (>= 2.14, < 4.0)
-    guard-shell (0.6.1)
-      guard (>= 1.1.0)
+    guard-shell (0.7.0)
+      guard (>= 2.0.0)
     haml (4.0.5)
       tilt
     highline (1.6.21)
@@ -292,7 +292,7 @@ GEM
       kgio (~> 2.6)
       rack
       raindrops (~> 0.7)
-    websocket-driver (0.3.5)
+    websocket-driver (0.4.0)
     xpath (2.0.0)
       nokogiri (~> 1.3)