diff --git a/bin/nginx-debug-heroku-18 b/bin/nginx-debug-heroku-18
index 6e2b0a80..b3cf63aa 100755
Binary files a/bin/nginx-debug-heroku-18 and b/bin/nginx-debug-heroku-18 differ
diff --git a/bin/nginx-heroku-18 b/bin/nginx-heroku-18
index 05cf2168..02cc38ac 100755
Binary files a/bin/nginx-heroku-18 and b/bin/nginx-heroku-18 differ
diff --git a/changelog.md b/changelog.md
index 0398ddad..5dfd70a1 100644
--- a/changelog.md
+++ b/changelog.md
@@ -4,11 +4,14 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [1.4] - 2020-03-06
+## [unreleased] - 2020-05-05
  ### Added
- - [heroku-18] update PCRE to 8.44
  - [all] add nginx-debug binary
 
+ ### Changed
+ - [heroku-18] update nginx to 1.18
+ - [heroku-18] update PCRE to 8.44
+
 ## [1.3] - 2020-01-06
  ### Added
  - [heroku-18] update nginx to 1.16.1
@@ -31,7 +34,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - [heroku-18] "headers-more-nginx" module updated from 0.261 to 0.33
 - [heroku-18] PCRE updated from 8.37 to 8.42
 
-
 ## [0.4] - 2012-05-13
 ### Added
 - [all] enabled gzip compression
diff --git a/readme.md b/readme.md
index 471639b4..730a932c 100644
--- a/readme.md
+++ b/readme.md
@@ -13,7 +13,7 @@ Some application servers (e.g. Ruby's Unicorn) halt progress when dealing with n
 ### Heroku 16
 * NGINX Version: 1.9.5
 ### Heroku 18
-* NGINX Version: 1.16.1
+* NGINX Version: 1.18.0
 
 ## Requirements (Proxy Mode)
 
diff --git a/scripts/build_nginx b/scripts/build_nginx
index 6aafdab0..c365d3d4 100755
--- a/scripts/build_nginx
+++ b/scripts/build_nginx
@@ -9,7 +9,7 @@
 # Once the dyno has is 'up' you can open your browser and navigate
 # this dyno's directory structure to download the nginx binary.
 
-NGINX_VERSION=${NGINX_VERSION-1.16.1}
+NGINX_VERSION=${NGINX_VERSION-1.18.0}
 PCRE_VERSION=${PCRE_VERSION-8.44}
 HEADERS_MORE_VERSION=${HEADERS_MORE_VERSION-0.33}
 ZLIB_VERSION=${ZLIB_VERSION-1.2.11}