diff --git a/Gemfile.lock b/Gemfile.lock
index fbd6e56..fb76c7f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -142,7 +142,7 @@ GEM
       railties
     method_source (0.8.2)
     mime-types (1.25.1)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.5.1)
     multi_json (1.13.1)
     multipart-post (2.0.0)
     mysql2 (0.3.21)
@@ -154,8 +154,9 @@ GEM
     net-ssh-gateway (1.2.0)
       net-ssh (>= 2.6.5)
     netrc (0.11.0)
-    nokogiri (1.8.1)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.11.4)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
     omniauth (1.4.2)
       hashie (>= 1.2, < 4)
       rack (>= 1.0, < 3)
@@ -181,6 +182,7 @@ GEM
     puma (3.11.4)
     quiet_assets (1.0.1)
       railties (~> 3.1)
+    racc (1.5.2)
     rack (1.4.7)
     rack-cache (1.8.0)
       rack (>= 0.4)