diff --git a/Gemfile.lock b/Gemfile.lock
index f0abc7c..2ba2e3b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -64,6 +64,7 @@ GEM
     crass (1.0.3)
     erubi (1.7.0)
     execjs (2.7.0)
+    ffi (1.9.18)
     ffi (1.9.18-x64-mingw32)
     globalid (0.4.1)
       activesupport (>= 4.2.0)
@@ -83,6 +84,8 @@ GEM
     minitest (5.11.3)
     multi_json (1.13.1)
     nio4r (2.2.0)
+    nokogiri (1.8.2)
+      mini_portile2 (~> 2.3.0)
     nokogiri (1.8.2-x64-mingw32)
       mini_portile2 (~> 2.3.0)
     public_suffix (3.0.1)
@@ -113,7 +116,7 @@ GEM
       method_source
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rake (12.3.0)
+    rake (13.0.1)
     rb-fsevent (0.10.2)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
@@ -139,6 +142,7 @@ GEM
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
+    sqlite3 (1.3.13)
     sqlite3 (1.3.13-x64-mingw32)
     thor (0.20.0)
     thread_safe (0.3.6)
@@ -164,6 +168,7 @@ GEM
       nokogiri (~> 1.8)
 
 PLATFORMS
+  ruby
   x64-mingw32
 
 DEPENDENCIES