diff --git a/Gemfile.lock b/Gemfile.lock
index e24c3d4..67c52ae 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -74,8 +74,8 @@ GEM
       activerecord (>= 3.0)
     acts_as_tree (2.8.0)
       activerecord (>= 3.0.0)
-    addressable (2.5.2)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     airbrake (4.3.8)
       builder
       multi_json
@@ -228,7 +228,9 @@ 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 (5.14.0)
@@ -264,7 +266,7 @@ GEM
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    public_suffix (3.0.3)
+    public_suffix (4.0.6)
     puma (4.3.5)
       nio4r (~> 2.0)
     rabl (0.14.0)