diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8d8d874b..01a2b5d9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 ## Changelog ##
 
-### 2.5.3-dev ###
+### 2.5.3 (April 24, 2024) ###
+* Fixes a very old bug that would cause tax queries to be built incorrectly. [[#622](https://github.com/pantheon-systems/solr-power/pull/622)] (props [@offshorealert](https://wordpress.org/support/users/offshorealert/))
 
 ### 2.5.2 (September 12, 2023) ###
 * Fix incompatibility with Object Cache Pro when running "wp solr index" [[#611](https://github.com/pantheon-systems/solr-power/pull/611)]
diff --git a/README.md b/README.md
index 4d80aa13..a1b9312b 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 **Tags:** search  
 **Requires at least:** 4.6  
 **Requires PHP:** 7.1  
-**Tested up to:** 6.4.1  
+**Tested up to:** 6.5.2  
 **Stable tag:** 2.5.3-dev  
 **License:** GPLv2 or later  
 **License URI:** http://www.gnu.org/licenses/gpl-2.0.html
diff --git a/bin/behat-cleanup.sh b/bin/behat-cleanup.sh
index 8f7e32ee..6d5077d4 100755
--- a/bin/behat-cleanup.sh
+++ b/bin/behat-cleanup.sh
@@ -20,4 +20,4 @@ set -ex
 ###
 # Delete the environment used for this test run.
 ###
-terminus multidev:delete $SITE_ENV --delete-branch --yes
+terminus multidev:delete $SITE_ENV --delete-branch --yes || true
diff --git a/includes/class-solrpower-wp-query.php b/includes/class-solrpower-wp-query.php
index f3b2d8e3..3ab9cc23 100644
--- a/includes/class-solrpower-wp-query.php
+++ b/includes/class-solrpower-wp-query.php
@@ -740,7 +740,7 @@ private function parse_tax_query( $tax_query ) {
 					$multi_query   = array();
 					$multi_query[] = '(' . $field . ':(' . implode( 'OR', $terms ) . '))';
 					if ( $tax_value['include_children'] && is_taxonomy_hierarchical( $tax_value['taxonomy'] ) ) {
-						$multi_query[] = '(parent_' . $field . ':' . implode( 'OR', $terms ) . ')';
+						$multi_query[] = '(parent_' . $field . ':(' . implode( 'OR', $terms ) . '))';
 					}
 					$query[] = '(' . implode( 'OR', $multi_query ) . ')';
 					break;
diff --git a/package.json b/package.json
index 83158623..1c6bb35f 100644
--- a/package.json
+++ b/package.json
@@ -23,4 +23,4 @@
     "grunt-wp-readme-to-markdown": "~2.1.0",
     "node-sass": "^9.0.0"
   }
-}
\ No newline at end of file
+}
diff --git a/readme.txt b/readme.txt
index 3841322b..1d38bb48 100644
--- a/readme.txt
+++ b/readme.txt
@@ -3,8 +3,8 @@ Contributors: getpantheon, Outlandish Josh, 10up, collinsinternet, andrew.taylor
 Tags: search
 Requires at least: 4.6
 Requires PHP: 7.1
-Tested up to: 6.4.1
-Stable tag: 2.5.2
+Tested up to: 6.5.2
+Stable tag: 2.5.3
 License: GPLv2 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html
 
@@ -235,7 +235,8 @@ Please report security bugs found in the source code of the Solr Power plugin th
 
 == Changelog ==
 
-= 2.5.3-dev =
+= 2.5.3 (April 24, 2024) =
+* Fixes a very old bug that would cause tax queries to be built incorrectly. [[#622](https://github.com/pantheon-systems/solr-power/pull/622)] (props [@offshorealert](https://wordpress.org/support/users/offshorealert/))
 
 = 2.5.2 (September 12, 2023) =
 * Fix incompatibility with Object Cache Pro when running "wp solr index" [[#611](https://github.com/pantheon-systems/solr-power/pull/611)]
diff --git a/tests/phpunit/wp_query/test-tax-query.php b/tests/phpunit/wp_query/test-tax-query.php
index 87417ce6..dd0589e0 100644
--- a/tests/phpunit/wp_query/test-tax-query.php
+++ b/tests/phpunit/wp_query/test-tax-query.php
@@ -29,7 +29,6 @@ function test_wp_query_by_tax() {
 			),
 		);
 		$query = new WP_Query( $args );
-
 		$this->assertEquals( $p_id, $query->post->ID );
 	}
 
@@ -1319,4 +1318,4 @@ public function test_term_taxonomy_id_field_no_taxonomy() {
 		), $results2, 'Relation: AND; Operator: IN' );
 	}
 
-}
\ No newline at end of file
+}