diff --git a/Gemfile.lock b/Gemfile.lock
index 6b0278b..2a68324 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -103,7 +103,7 @@ GEM
       railties (>= 3.1.0)
     json (1.8.0)
     libv8 (3.11.8.17)
-    mail (2.5.4)
+    mail (2.5.5)
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
     mailcatcher (0.5.12)
@@ -115,7 +115,7 @@ GEM
       skinny (~> 0.2.3)
       sqlite3 (~> 1.3)
       thin (~> 1.5.0)
-    mime-types (1.23)
+    mime-types (1.25.1)
     mini_portile (0.5.0)
     multi_json (1.7.6)
     mysql2 (0.3.11)
@@ -135,7 +135,7 @@ GEM
       activesupport (>= 2.3.2)
       cocaine (>= 0.0.2)
       mime-types
-    polyglot (0.3.3)
+    polyglot (0.3.5)
     populator (1.0.0)
     rack (1.4.5)
     rack-cache (1.2)
@@ -203,7 +203,7 @@ GEM
       rack (>= 1.0.0)
     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)