diff --git a/Gemfile b/Gemfile
index b5420731..3d4a7743 100644
--- a/Gemfile
+++ b/Gemfile
@@ -22,7 +22,7 @@ gem('json-ld')
 gem('mini_portile2', '2.8.0')
 gem('matrix')
 gem('multi_json', '1.14.1')
-gem('nokogiri', '1.13.4')
+gem('nokogiri', '1.13.6')
 gem('parallel', '1.19.1')
 gem('pry')
 gem('public_suffix', '4.0.5')
diff --git a/Gemfile.lock b/Gemfile.lock
index e4b67acc..a6242f1f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -131,10 +131,10 @@ GEM
     mustermann (1.1.1)
       ruby2_keywords (~> 0.0.1)
     netrc (0.11.0)
-    nokogiri (1.13.4)
+    nokogiri (1.13.6)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
-    nokogiri (1.13.4-x86_64-linux)
+    nokogiri (1.13.6-x86_64-linux)
       racc (~> 1.4)
     parallel (1.19.1)
     parser (3.0.3.2)
@@ -263,7 +263,7 @@ DEPENDENCIES
   matrix
   mini_portile2 (= 2.8.0)
   multi_json (= 1.14.1)
-  nokogiri (= 1.13.4)
+  nokogiri (= 1.13.6)
   parallel (= 1.19.1)
   pry
   public_suffix (= 4.0.5)