diff --git a/Gemfile.lock b/Gemfile.lock
index eb01128..83ee4f7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -67,16 +67,18 @@ GEM
       rb-kqueue (>= 0.2)
     maruku (0.7.0)
     mathn (0.1.0)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.6.1)
     minitest (5.3.5)
-    nokogiri (1.10.8)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
+      racc (~> 1.4)
     parslet (1.5.0)
       blankslate (~> 2.0)
     posix-spawn (0.3.13)
     pygments.rb (0.5.4)
       posix-spawn (~> 0.3.6)
       yajl-ruby (~> 1.1.0)
+    racc (1.5.2)
     rake (12.3.3)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)