diff --git a/Gemfile b/Gemfile
index 5d49477..753728d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,5 +1,5 @@
 source :rubygems
 
-gem 'nokogiri', '~> 1.12.5'
+gem 'nokogiri', '~> 1.13.2'
 gem 'log4r'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 6b810f4..3ca706f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,13 +2,13 @@ GEM
   remote: http://rubygems.org/
   specs:
     log4r (1.1.10)
-    mini_portile2 (2.6.1)
-    nokogiri (1.12.5)
-      mini_portile2 (~> 2.6.1)
+    mini_portile2 (2.8.0)
+    nokogiri (1.13.2)
+      mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
-    nokogiri (1.12.5-x86-mingw32)
+    nokogiri (1.13.2-x86-mingw32)
       racc (~> 1.4)
-    racc (1.5.2)
+    racc (1.6.0)
 
 PLATFORMS
   ruby
@@ -16,7 +16,7 @@ PLATFORMS
 
 DEPENDENCIES
   log4r
-  nokogiri (~> 1.12.5)
+  nokogiri (~> 1.13.2)
 
 BUNDLED WITH
    2.0.2