diff --git a/Gemfile.lock b/Gemfile.lock
index b2eb12a..e1c56b1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -40,8 +40,8 @@ GEM
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
-    addressable (2.5.2)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     arel (6.0.4)
     ast (2.4.0)
     autoprefixer-rails (7.1.5)
@@ -760,7 +760,9 @@ GEM
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
-    mimemagic (0.3.2)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_portile2 (2.3.0)
     minitest (5.12.2)
     momentjs-rails (2.17.1)
@@ -807,7 +809,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
-    public_suffix (3.0.0)
+    public_suffix (4.0.7)
     rack (1.6.11)
     rack-accept (0.4.5)
       rack (>= 0.4)