diff --git a/Gemfile.lock b/Gemfile.lock
index b1c670d..e9e05d6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -61,8 +61,8 @@ GEM
       minitest (~> 5.1)
       tzinfo (~> 1.1)
       zeitwerk (~> 2.2)
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     airbrussh (1.4.0)
       sshkit (>= 1.6.1, != 1.7.0)
     aws-eventstream (1.1.0)
@@ -190,7 +190,9 @@ GEM
       mimemagic (~> 0.3.2)
     method_source (1.0.0)
     middleware (0.1.0)
-    mimemagic (0.3.4)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     mini_racer (0.3.1)
@@ -229,7 +231,7 @@ GEM
       omniauth-oauth2 (>= 1.5, <= 1.6)
     orm_adapter (0.5.0)
     pg (1.2.3)
-    public_suffix (4.0.4)
+    public_suffix (4.0.7)
     puma (4.3.3)
       nio4r (~> 2.0)
     rack (2.2.3)