diff --git a/Gemfile.lock b/Gemfile.lock
index 24d3cac..b83eb77 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -43,8 +43,8 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.6.0)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     ansi (1.5.0)
     archive-zip (0.12.0)
       io-like (~> 0.3.0)
@@ -274,7 +274,9 @@ GEM
     mime-types (3.3)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2019.0904)
-    mimemagic (0.3.3)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_magick (4.9.4)
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
@@ -298,7 +300,7 @@ GEM
       json (>= 1, < 3)
     pg (1.1.4)
     pg (1.1.4-x64-mingw32)
-    public_suffix (3.1.1)
+    public_suffix (5.0.0)
     puma (3.12.1)
     rack (2.0.7)
     rack-test (1.1.0)