diff --git a/Gemfile.lock b/Gemfile.lock
index 380835b..8d15d96 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -49,8 +49,8 @@ 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)
     ansi (1.5.0)
     arel (9.0.0)
     ast (2.4.0)
@@ -72,7 +72,9 @@ GEM
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
     method_source (0.9.2)
-    mimemagic (0.3.3)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     minitest (5.12.2)
@@ -84,7 +86,7 @@ GEM
       ast
       ruby-ll (~> 2.1)
     open_uri_redirections (0.2.1)
-    public_suffix (4.0.1)
+    public_suffix (5.0.0)
     rack (2.0.8)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)