diff --git a/Gemfile.lock b/Gemfile.lock
index 7768db5a..9499d179 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -169,9 +169,11 @@ 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)
+    mini_portile2 (2.6.1)
     minitest (5.14.0)
     multi_json (1.13.1)
     multi_xml (0.6.0)
@@ -186,8 +188,9 @@ GEM
     net_http_timeout_errors (0.3.3)
     nifty-generators (0.4.6)
     nio4r (2.5.2)
-    nokogiri (1.10.9)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
+      racc (~> 1.4)
     nokogumbo (2.0.1)
       nokogiri (~> 1.8, >= 1.8.4)
     oauth (0.5.4)
@@ -235,6 +238,7 @@ GEM
       actionmailer (>= 3.0.0)
       postmark (~> 1.15)
     public_suffix (3.0.3)
+    racc (1.5.2)
     rack (2.2.3)
     rack-cors (1.0.6)
       rack (>= 1.6.0)