diff --git a/Gemfile b/Gemfile
index 07fceab..bec2cca 100644
--- a/Gemfile
+++ b/Gemfile
@@ -16,4 +16,4 @@ gem 'byebug', '< 9.1.0'
 #gem 'origen', path: "~/Code/github/origen"
 
 # Lock this version to enable testing on Ruby 2.2
-gem 'nokogiri', '1.8.5'
+gem 'nokogiri', '1.13.4'
diff --git a/Gemfile.lock b/Gemfile.lock
index 883e313..d030875 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -37,14 +37,15 @@ GEM
     mime-types (3.3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2020.1104)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.8.0)
     minitest (5.14.2)
     multi_xml (0.6.0)
     nanoc (3.7.5)
       cri (~> 2.3)
     net-ldap (0.17.0)
-    nokogiri (1.8.5)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.13.4)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     origen (0.59.4)
       activesupport (~> 4.1)
       bundler (> 1.7)
@@ -77,6 +78,7 @@ GEM
     pry (0.13.1)
       coderay (~> 1.1)
       method_source (~> 1.0)
+    racc (1.6.0)
     rainbow (2.2.2)
       rake
     rake (10.5.0)
@@ -120,7 +122,7 @@ PLATFORMS
 
 DEPENDENCIES
   byebug (< 9.1.0)
-  nokogiri (= 1.8.5)
+  nokogiri (= 1.13.4)
   origen_app_generators!
 
 BUNDLED WITH