diff --git a/Gemfile.lock b/Gemfile.lock
index 9ecf2e5..a2caffb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -102,7 +102,7 @@ GEM
     database_cleaner (1.6.2)
     debug_inspector (0.0.3)
     diff-lcs (1.3)
-    docile (1.1.5)
+    docile (1.3.0)
     em-websocket (0.5.1)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0.6.0)
@@ -282,8 +282,8 @@ GEM
       sprockets-rails (>= 2.0, < 4.0)
       tilt (>= 1.1, < 3)
     shellany (0.0.1)
-    simplecov (0.15.1)
-      docile (~> 1.1.0)
+    simplecov (0.16.0)
+      docile (~> 1.1)
       json (>= 1.8, < 3)
       simplecov-html (~> 0.10.0)
     simplecov-html (0.10.2)
@@ -310,7 +310,7 @@ GEM
     turbolinks-source (5.1.0)
     tzinfo (1.2.5)
       thread_safe (~> 0.1)
-    uglifier (4.1.7)
+    uglifier (4.1.8)
       execjs (>= 0.3.0, < 3)
     unicode-display_width (1.3.0)
     unicorn (5.4.0)