diff --git a/Gemfile.lock b/Gemfile.lock
index 9461798..1920bd2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -69,11 +69,10 @@ GEM
     jwt (0.1.8)
       multi_json (>= 1.5)
     kgio (2.8.0)
-    mail (2.5.3)
-      i18n (>= 0.4.0)
+    mail (2.5.5)
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
-    mime-types (1.23)
+    mime-types (1.25.1)
     multi_json (1.7.2)
     multipart-post (1.2.0)
     newrelic_rpm (3.6.2.96)
@@ -93,7 +92,7 @@ GEM
       omniauth (~> 1.0)
     orm_adapter (0.4.0)
     pg (0.15.1)
-    polyglot (0.3.3)
+    polyglot (0.3.5)
     pusher (0.11.3)
       multi_json (~> 1.0)
       signature (~> 0.1.6)
@@ -136,7 +135,7 @@ GEM
       tilt (~> 1.1, != 1.3.0)
     thor (0.18.1)
     tilt (1.3.7)
-    treetop (1.4.12)
+    treetop (1.4.15)
       polyglot
       polyglot (>= 0.3.1)
     tzinfo (0.3.37)