diff --git a/Gemfile.lock b/Gemfile.lock
index 7caa583..4e52f4b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -67,15 +67,14 @@ GEM
       actionpack (>= 3.1)
       less (~> 2.3.1)
     libv8 (3.3.10.4)
-    mail (2.5.3)
-      i18n (>= 0.4.0)
+    mail (2.5.5)
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
     method_source (0.8.1)
-    mime-types (1.23)
+    mime-types (1.25.1)
     multi_json (1.7.2)
     pg (0.15.1)
-    polyglot (0.3.3)
+    polyglot (0.3.5)
     pry (0.9.12.1)
       coderay (~> 1.0.5)
       method_source (~> 0.8)
@@ -138,7 +137,7 @@ GEM
       libv8 (~> 3.3.10)
     thor (0.18.1)
     tilt (1.3.7)
-    treetop (1.4.12)
+    treetop (1.4.15)
       polyglot
       polyglot (>= 0.3.1)
     twitter-bootstrap-rails (2.2.6)