diff --git a/Gemfile b/Gemfile
index 22194d6..a3fadd3 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,7 +4,7 @@ gem 'builder', '~> 3.2'
 gem 'css_parser', '~> 1.3'
 gem 'htmlentities', '~> 4.3'
 gem 'mustache', '~> 1.0'
-gem 'nokogiri', '~> 1.8'
+gem 'nokogiri', '~> 1.10'
 gem 'rdiscount', '~> 2.1'
 gem 'sinatra', '~> 1.4'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index aff0418..8395760 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -31,11 +31,11 @@ GEM
       ruby_dep (~> 1.2)
     lumberjack (1.0.12)
     method_source (0.9.0)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.4.0)
     mustache (1.0.5)
     nenv (0.3.0)
-    nokogiri (1.8.1)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.10.4)
+      mini_portile2 (~> 2.4.0)
     notiffany (0.1.1)
       nenv (~> 0.1)
       shellany (~> 0.0)
@@ -81,7 +81,7 @@ DEPENDENCIES
   guard-rspec (~> 4.6)
   htmlentities (~> 4.3)
   mustache (~> 1.0)
-  nokogiri (~> 1.8)
+  nokogiri (~> 1.10)
   rdiscount (~> 2.1)
   rspec (~> 3.3)
   sinatra (~> 1.4)