diff --git a/Gemfile.lock b/Gemfile.lock
index ce1f487..a00a18b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -15,7 +15,7 @@ GEM
     descendants_tracker (0.0.4)
       thread_safe (~> 0.3, >= 0.3.1)
     diff-lcs (1.3)
-    docile (1.1.5)
+    docile (1.3.2)
     equalizer (0.0.11)
     ffi (1.9.18)
     formatador (0.2.5)
@@ -35,7 +35,7 @@ GEM
       rspec (>= 2.99.0, < 4.0)
     hirb (0.7.3)
     ice_nine (0.11.2)
-    json (2.1.0)
+    json (2.2.0)
     listen (3.1.5)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
@@ -87,15 +87,15 @@ GEM
     ruby-progressbar (1.8.1)
     ruby_dep (1.5.0)
     shellany (0.0.1)
-    simplecov (0.14.1)
-      docile (~> 1.1.0)
+    simplecov (0.17.0)
+      docile (~> 1.1)
       json (>= 1.8, < 3)
       simplecov-html (~> 0.10.0)
     simplecov-console (0.4.2)
       ansi
       hirb
       simplecov
-    simplecov-html (0.10.1)
+    simplecov-html (0.10.2)
     slop (3.6.0)
     thor (0.19.4)
     thread_safe (0.3.6)