diff --git a/src/readme.txt b/src/readme.txt
index 5ee35f1..de4b1c9 100644
--- a/src/readme.txt
+++ b/src/readme.txt
@@ -5,7 +5,7 @@ Tags: title, accessibility, accessible, navigation, wcag, a11y, section508, focu
 Requires at least: 3.4.2
 Requires PHP: 5.3
 Tested up to: 5.6
-Stable tag: 1.7.4
+Stable tag: 1.7.5
 Text Domain: wp-accessibility
 License: GPLv2 or later
 
@@ -74,6 +74,10 @@ The plug-in is intended to help with deficiencies commonly found in themes and t
 
 [Suggest a change!](https://github.com/joedolson/wp-accessibility/issues/)
 
+= 1.7.5 =
+
+* Bug fix: register_block_style only exists since WP 5.3; check function exists first.
+
 = 1.7.4 =
 
 * Change: mark ` ` as an invalid alt value.
diff --git a/src/wp-accessibility.php b/src/wp-accessibility.php
index 1eb0d29..366d172 100644
--- a/src/wp-accessibility.php
+++ b/src/wp-accessibility.php
@@ -17,7 +17,7 @@
  * Domain Path: /lang
  * License:     GPL-2.0+
  * License URI: http://www.gnu.org/license/gpl-2.0.txt
- * Version: 1.7.4
+ * Version: 1.7.5
  */
 
 /*
@@ -69,7 +69,7 @@ function wpa_admin_menu() {
  * Install on activation.
  */
 function wpa_install() {
-	$wpa_version = '1.7.3';
+	$wpa_version = '1.7.5';
 	if ( 'true' !== get_option( 'wpa_installed' ) ) {
 		add_option( 'rta_from_nav_menu', 'on' );
 		add_option( 'rta_from_page_lists', 'on' );