diff --git a/Gemfile.lock b/Gemfile.lock
index 2e991b7..6f6a6b8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -47,16 +47,16 @@ GEM
       railties (>= 3.0, < 5.0)
       thor (>= 0.14, < 2.0)
     json (1.8.0)
-    mail (2.5.4)
+    mail (2.5.5)
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
     method_source (0.8.2)
-    mime-types (1.25)
+    mime-types (1.25.1)
     minitest (4.7.5)
     multi_json (1.8.0)
     polyamorous (0.6.4)
       activerecord (>= 3.0)
-    polyglot (0.3.3)
+    polyglot (0.3.5)
     pry (0.9.12.2)
       coderay (~> 1.0.5)
       method_source (~> 0.8)