diff --git a/Gemfile.lock b/Gemfile.lock
index a00d4784..6c8595c4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -89,8 +89,8 @@ 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)
     annotate (2.7.4)
       activerecord (>= 3.2, < 6.0)
       rake (>= 10.4, < 13.0)
@@ -212,7 +212,9 @@ 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 (1.0.1)
     mini_portile2 (2.4.0)
     minitest (5.11.3)
@@ -222,7 +224,7 @@ GEM
       mini_portile2 (~> 2.4.0)
     orm_adapter (0.5.0)
     pg (1.1.3)
-    public_suffix (3.0.3)
+    public_suffix (5.0.0)
     puma (3.12.0)
     rack (2.0.6)
     rack-protection (2.0.5)