diff --git a/Gemfile.lock b/Gemfile.lock
index 6a799f3..c2076dd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -17,10 +17,12 @@ GEM
     diff-lcs (1.3)
     i18n (1.0.1)
       concurrent-ruby (~> 1.0)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.6.1)
     minitest (5.11.3)
-    nokogiri (1.8.2)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
+      racc (~> 1.4)
+    racc (1.5.2)
     roo (1.13.2)
       nokogiri
       rubyzip