diff --git a/Gemfile.lock b/Gemfile.lock
index 3371ffc..f3f17ec 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -47,12 +47,12 @@ GEM
       railties (>= 3.2.0, < 5.0)
       thor (~> 0.14)
     json (1.8.0)
-    mail (2.5.4)
+    mail (2.5.5)
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
-    mime-types (1.23)
+    mime-types (1.25.1)
     multi_json (1.7.7)
-    polyglot (0.3.3)
+    polyglot (0.3.5)
     rack (1.4.5)
     rack-cache (1.2)
       rack (>= 0.4)
@@ -88,10 +88,11 @@ GEM
       multi_json (~> 1.0)
       rack (~> 1.0)
       tilt (~> 1.1, != 1.3.0)
+    sqlite3 (1.3.5)
     sqlite3 (1.3.5-x86-mingw32)
     thor (0.18.1)
     tilt (1.4.1)
-    treetop (1.4.14)
+    treetop (1.4.15)
       polyglot
       polyglot (>= 0.3.1)
     tzinfo (0.3.37)
@@ -100,6 +101,7 @@ GEM
       multi_json (>= 1.0.2)
 
 PLATFORMS
+  ruby
   x86-mingw32
 
 DEPENDENCIES