diff --git a/Gemfile.lock b/Gemfile.lock
index 93a4bfc..8c8e561 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -49,8 +49,8 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       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 (9.0.0)
     builder (3.2.3)
     byebug (10.0.2)
@@ -86,14 +86,16 @@ GEM
     marcel (0.3.2)
       mimemagic (~> 0.3.2)
     method_source (0.9.0)
-    mimemagic (0.3.2)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.0)
     mini_portile2 (2.3.0)
     minitest (5.11.3)
     nio4r (2.3.1)
     nokogiri (1.8.4)
       mini_portile2 (~> 2.3.0)
-    public_suffix (3.0.2)
+    public_suffix (5.0.0)
     rack (2.0.5)
     rack-test (1.0.0)
       rack (>= 1.0, < 3)