diff --git a/Gemfile.lock b/Gemfile.lock
index 63b1368..d287587 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -42,8 +42,8 @@ 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)
     bindex (0.8.1)
     builder (3.2.3)
@@ -91,7 +91,9 @@ GEM
     mime-types (3.2.2)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2018.0812)
-    mimemagic (0.3.3)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     minitest (5.11.3)
@@ -99,7 +101,7 @@ GEM
     nokogiri (1.10.10)
       mini_portile2 (~> 2.4.0)
     pg (0.21.0)
-    public_suffix (3.0.3)
+    public_suffix (5.0.0)
     puma (3.12.0)
     rack (2.0.5)
     rack-test (1.1.0)