diff --git a/Gemfile b/Gemfile
index 68d56f9b..7d5a416f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -23,7 +23,7 @@ gem 'httparty'
 gem 'jbuilder', '2.6.0'
 gem 'jquery-rails', '4.3.1'
 gem 'mysql2', '~> 0.4.10'
-gem 'nokogiri', '~> 1.10.0'
+gem 'nokogiri', '~> 1.13.6'
 gem 'oj'
 gem 'rails', '~> 4.2.0'
 gem 'rsolr', '1.1.2'
diff --git a/Gemfile.lock b/Gemfile.lock
index 53f784ff..a83e1d09 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -232,14 +232,15 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2020.0512)
     mini_mime (1.1.1)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.0)
     minitest (5.14.4)
     multi_json (1.15.0)
     multi_xml (0.6.0)
     multipart-post (2.1.1)
     mysql2 (0.4.10)
-    nokogiri (1.10.10)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.6)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     oj (3.10.8)
     openurl (1.0.0)
       marc
@@ -247,6 +248,7 @@ GEM
     orm_adapter (0.5.0)
     parslet (2.0.0)
     public_suffix (4.0.6)
+    racc (1.6.0)
     rack (1.6.13)
     rack-test (0.6.3)
       rack (>= 1.0)
@@ -400,7 +402,7 @@ DEPENDENCIES
   jbuilder (= 2.6.0)
   jquery-rails (= 4.3.1)
   mysql2 (~> 0.4.10)
-  nokogiri (~> 1.10.0)
+  nokogiri (~> 1.13.6)
   oj
   rails (~> 4.2.0)
   rsolr (= 1.1.2)