diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8a53dafa5a..f5cf98b83d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 All notable changes to this project will be documented in this file, per [the Keep a Changelog standard](http://keepachangelog.com/).
 
+## [3.2.5] - 2019-11-20
+
+* Fix WP <5.0 fatal error on register_block_type.
+
 ## [3.2.4] - 2019-11-19
 
 * Fix Gutenberg block initialization
diff --git a/docs/install.md b/docs/install.md
index 64f6d0bff3..1adc260ca2 100644
--- a/docs/install.md
+++ b/docs/install.md
@@ -3,6 +3,7 @@
 * [Elasticsearch](https://www.elastic.co) 5.0+ **ElasticSearch max version supported: 6.4**
 * [WordPress](http://wordpress.org) 3.7.1+
 * [PHP](https://php.net/) 5.4+
+* A properly configured web server with object caching is highly recommended.
 
 ## Install Steps
 
diff --git a/elasticpress.php b/elasticpress.php
index 89178d4720..e336d9e5ca 100644
--- a/elasticpress.php
+++ b/elasticpress.php
@@ -2,7 +2,7 @@
 /**
  * Plugin Name: ElasticPress
  * Description: A fast and flexible search and query engine for WordPress.
- * Version:     3.2.4
+ * Version:     3.2.5
  * Author:      10up
  * Author URI:  http://10up.com
  * License:     GPLv2 or later
@@ -27,7 +27,7 @@
 
 define( 'EP_URL', plugin_dir_url( __FILE__ ) );
 define( 'EP_PATH', plugin_dir_path( __FILE__ ) );
-define( 'EP_VERSION', '3.2.4' );
+define( 'EP_VERSION', '3.2.5' );
 
 /**
  * PSR-4-ish autoloading
diff --git a/includes/classes/Feature/RelatedPosts/RelatedPosts.php b/includes/classes/Feature/RelatedPosts/RelatedPosts.php
index 106ee822f7..9dd24f3b98 100644
--- a/includes/classes/Feature/RelatedPosts/RelatedPosts.php
+++ b/includes/classes/Feature/RelatedPosts/RelatedPosts.php
@@ -227,6 +227,11 @@ public function output_endpoint( $request ) {
 	 * @since  3.2
 	 */
 	public function register_block() {
+		// Must be WP 5.0+
+		if ( ! function_exists( 'register_block_type' ) ) {
+			return;
+		}
+
 		wp_register_script(
 			'elasticpress-related-posts-block',
 			EP_URL . 'dist/js/related-posts-block-script.min.js',
diff --git a/readme.txt b/readme.txt
index 3b9975823f..704564c08d 100644
--- a/readme.txt
+++ b/readme.txt
@@ -43,6 +43,11 @@ Please refer to [Github](https://github.com/10up/ElasticPress) for detailed usag
 
 == Changelog ==
 
+= 3.2.5
+This is a bug fix version.
+
+* Fix WP <5.0 fatal error on register_block_type.
+
 = 3.2.4
 This is a bug fix version.