diff --git a/HISTORY.md b/HISTORY.md
index 39e67396..f0eed2bd 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,3 +1,7 @@
+# 5.2.1 2021-02-25
+
+* Fix include call to a missing asset (@benjaminwil). This caused slow first page loads on JRuby.
+
 # 5.2 2021-02-24
 
 * Improved styling and Primer upgrade (@benjaminwil)
diff --git a/gollum.gemspec b/gollum.gemspec
index e914be3b..798cfc51 100644
--- a/gollum.gemspec
+++ b/gollum.gemspec
@@ -5,8 +5,8 @@ Gem::Specification.new do |s|
   s.required_ruby_version = '>= 1.9'
 
   s.name              = 'gollum'
-  s.version           = '5.2'
-  s.date              = '2021-02-24'
+  s.version           = '5.2.1'
+  s.date              = '2021-02-25'
   s.license           = 'MIT'
 
   s.summary     = 'A simple, Git-powered wiki.'
@@ -69,7 +69,7 @@ Gem::Specification.new do |s|
     lib/gollum/app.rb
     lib/gollum/assets.rb
     lib/gollum/helpers.rb
-    lib/gollum/public/assets/.sprockets-manifest-e3f9b0be36ac3bccc4c006a52e352500.json
+    lib/gollum/public/assets/.sprockets-manifest-15b663a27211dc9de9a452b4b74462d7.json
     lib/gollum/public/assets/app-7a0bbff2e8bad3033e7c17e0e0f886f336a9d23d3b912dcd2ae389c48b4b63e6.css
     lib/gollum/public/assets/app-7a0bbff2e8bad3033e7c17e0e0f886f336a9d23d3b912dcd2ae389c48b4b63e6.css.gz
     lib/gollum/public/assets/app-7a4bd115f4bc7ece39bc8073ca0ffad7c5e55cc5837b1464a12dead4905cefb2.js
diff --git a/lib/gollum.rb b/lib/gollum.rb
index 39f64bcd..6ed22d42 100644
--- a/lib/gollum.rb
+++ b/lib/gollum.rb
@@ -12,7 +12,7 @@ require 'rhino' if RUBY_PLATFORM == 'java'
 require File.expand_path('../gollum/uri_encode_component', __FILE__)
 
 module Gollum
-  VERSION = '5.2'
+  VERSION = '5.2.1'
 
   def self.assets_path
     ::File.expand_path('gollum/public', ::File.dirname(__FILE__))