diff --git a/Gemfile.lock b/Gemfile.lock
index 7a1fda2..f9e8fc9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -83,16 +83,16 @@ GEM
     concurrent-ruby (1.0.5)
     contracts (0.16.0)
     crass (1.0.4)
-    cucumber (3.1.1)
+    cucumber (3.1.2)
       builder (>= 2.1.2)
-      cucumber-core (~> 3.1.0)
-      cucumber-expressions (~> 6.0.0)
+      cucumber-core (~> 3.2.0)
+      cucumber-expressions (~> 6.0.1)
       cucumber-wire (~> 0.0.1)
       diff-lcs (~> 1.3)
       gherkin (~> 5.1.0)
       multi_json (>= 1.7.5, < 2.0)
       multi_test (>= 0.1.2)
-    cucumber-core (3.1.0)
+    cucumber-core (3.2.0)
       backports (>= 3.8.0)
       cucumber-tag_expressions (~> 1.1.0)
       gherkin (>= 5.0.0)
@@ -199,7 +199,7 @@ GEM
     pry-rails (0.3.6)
       pry (>= 0.10.4)
     public_suffix (3.0.2)
-    puma (3.11.4)
+    puma (3.12.0)
     rack (2.0.5)
     rack-livereload (0.3.17)
       rack
@@ -313,7 +313,7 @@ GEM
     turbolinks-source (5.1.0)
     tzinfo (1.2.5)
       thread_safe (~> 0.1)
-    uglifier (4.1.14)
+    uglifier (4.1.15)
       execjs (>= 0.3.0, < 3)
     unicode-display_width (1.4.0)
     unicorn (5.4.0)