diff --git a/Gemfile.lock b/Gemfile.lock
index dfb2968..9942ca8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -45,8 +45,8 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     airbrussh (1.4.0)
       sshkit (>= 1.6.1, != 1.7.0)
     amq-protocol (2.3.2)
@@ -283,7 +283,9 @@ GEM
       rack-contrib (>= 1.1, < 3)
       railties (>= 3.0.0, < 7)
     method_source (1.0.0)
-    mimemagic (0.3.4)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_histogram (0.1.3)
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
@@ -337,7 +339,7 @@ GEM
     pry-remote (0.1.8)
       pry (~> 0.9)
       slop (~> 3.0)
-    public_suffix (4.0.4)
+    public_suffix (5.0.0)
     puma (3.12.4)
     pundit (2.1.0)
       activesupport (>= 3.0.0)