diff --git a/Gemfile b/Gemfile
index 156465b8..ae2b3561 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,7 +7,7 @@ gem 'systemu', '~> 2.6.5'
 gem 'adsf', '~> 1.2.0'
 gem 'sass', '~> 3.4.21'
 gem 'rdiscount', '~> 2.1.8'
-gem 'nokogiri', '~> 1.10.4'
+gem 'nokogiri', '~> 1.10.8'
 gem 'feedjira', '~> 2.0.0'
 gem 'ri_cal', '~> 0.8.8'
 gem 'rqrcode_png', '~> 0.1.5'
diff --git a/Gemfile.lock b/Gemfile.lock
index 1eda9ab5..f77456b4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -70,7 +70,7 @@ GEM
       cri (~> 2.3)
     naught (1.1.0)
     nenv (0.3.0)
-    nokogiri (1.10.4)
+    nokogiri (1.10.8)
       mini_portile2 (~> 2.4.0)
     notiffany (0.1.1)
       nenv (~> 0.1)
@@ -132,7 +132,7 @@ DEPENDENCIES
   feedjira (~> 2.0.0)
   guard-nanoc (~> 1.0.3)
   nanoc (~> 3.7.5)
-  nokogiri (~> 1.10.4)
+  nokogiri (~> 1.10.8)
   rdiscount (~> 2.1.8)
   ri_cal (~> 0.8.8)
   rqrcode_png (~> 0.1.5)