diff --git a/Gemfile.lock b/Gemfile.lock
index 25c1bac..aa1d0b6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -88,10 +88,11 @@ GEM
     mercenary (0.3.6)
     method_source (0.9.2)
     mini_magick (4.8.0)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.6.1)
     minitest (5.11.3)
-    nokogiri (1.10.3)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.12.0)
+      mini_portile2 (~> 2.6.1)
+      racc (~> 1.4)
     octopress (3.0.12.pre.1)
       jekyll (>= 2.0)
       mercenary (~> 0.3.2)
@@ -112,6 +113,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     public_suffix (3.1.1)
+    racc (1.5.2)
     rack (2.0.6)
     rake (12.3.2)
     rb-fsevent (0.10.3)