diff --git a/Gemfile.lock b/Gemfile.lock
index abbb8a6..a3059c9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -175,7 +175,7 @@ GEM
     mime-types-data (3.2016.0521)
     mimemagic (0.3.2)
     mini_mime (1.0.0)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.8.0)
     minitest (5.11.3)
     msgpack (1.2.4)
     multi_json (1.13.1)
@@ -183,8 +183,9 @@ GEM
     net-http-persistent (3.0.0)
       connection_pool (~> 2.2)
     nio4r (2.3.1)
-    nokogiri (1.8.4)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.13.3)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     ntlm-http (0.1.1)
     pg (1.0.0)
     priority_queue_cxx (0.3.4)
@@ -196,14 +197,12 @@ GEM
     public_suffix (3.0.2)
     puma (3.12.0)
     raabro (1.1.6)
+    racc (1.6.0)
     rack (2.0.5)
     rack-protection (2.0.4)
       rack
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
-    rack-throttle (0.7.0)
-      bundler (>= 1.0.0)
-      rack (>= 1.0.0)
     rails (5.2.0)
       actioncable (= 5.2.0)
       actionmailer (= 5.2.0)
@@ -334,7 +333,6 @@ DEPENDENCIES
   pry
   pry-rails
   puma (~> 3.11)
-  rack-throttle
   rails (~> 5.2.0)
   redis (~> 4.0)
   rspec-rails