diff --git a/.eslintignore b/.eslintignore
index eac2bbb..2b29f27 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -1,2 +1 @@
-js/scrollTo.js
 tests
diff --git a/js/mailchimp.js b/js/mailchimp.js
index 7d7c2c2..1170515 100644
--- a/js/mailchimp.js
+++ b/js/mailchimp.js
@@ -21,7 +21,10 @@
 			});
 			$('#mc_submit_type').val('js');
 		}
-		$.scrollTo('#mc_signup', { offset: { top: -28 } });
+		window.scrollTo({
+			top: document.getElementById('mc_signup').offsetTop - 28,
+			behavior: 'smooth',
+		});
 	}
 
 	$(function ($) {
diff --git a/js/scrollTo.js b/js/scrollTo.js
deleted file mode 100755
index 5e78778..0000000
--- a/js/scrollTo.js
+++ /dev/null
@@ -1,11 +0,0 @@
-/**
- * jQuery.ScrollTo - Easy element scrolling using jQuery.
- * Copyright (c) 2007-2009 Ariel Flesler - aflesler(at)gmail(dot)com | http://flesler.blogspot.com
- * Dual licensed under MIT and GPL.
- * Date: 5/25/2009
- * @author Ariel Flesler
- * @version 1.4.2
- *
- * http://flesler.blogspot.com/2007/10/jqueryscrollto.html
- */
-;(function(d){var k=d.scrollTo=function(a,i,e){d(window).scrollTo(a,i,e)};k.defaults={axis:'xy',duration:parseFloat(d.fn.jquery)>=1.3?0:1};k.window=function(a){return d(window)._scrollable()};d.fn._scrollable=function(){return this.map(function(){var a=this,i=!a.nodeName||d.inArray(a.nodeName.toLowerCase(),['iframe','#document','html','body'])!=-1;if(!i)return a;var e=(a.contentWindow||a).document||a.ownerDocument||a;return d.browser.safari||e.compatMode=='BackCompat'?e.body:e.documentElement})};d.fn.scrollTo=function(n,j,b){if(typeof j=='object'){b=j;j=0}if(typeof b=='function')b={onAfter:b};if(n=='max')n=9e9;b=d.extend({},k.defaults,b);j=j||b.speed||b.duration;b.queue=b.queue&&b.axis.length>1;if(b.queue)j/=2;b.offset=p(b.offset);b.over=p(b.over);return this._scrollable().each(function(){var q=this,r=d(q),f=n,s,g={},u=r.is('html,body');switch(typeof f){case'number':case'string':if(/^([+-]=)?\d+(\.\d+)?(px|%)?$/.test(f)){f=p(f);break}f=d(f,this);case'object':if(f.is||f.style)s=(f=d(f)).offset()}d.each(b.axis.split(''),function(a,i){var e=i=='x'?'Left':'Top',h=e.toLowerCase(),c='scroll'+e,l=q[c],m=k.max(q,i);if(s){g[c]=s[h]+(u?0:l-r.offset()[h]);if(b.margin){g[c]-=parseInt(f.css('margin'+e))||0;g[c]-=parseInt(f.css('border'+e+'Width'))||0}g[c]+=b.offset[h]||0;if(b.over[h])g[c]+=f[i=='x'?'width':'height']()*b.over[h]}else{var o=f[h];g[c]=o.slice&&o.slice(-1)=='%'?parseFloat(o)/100*m:o}if(/^\d+$/.test(g[c]))g[c]=g[c]<=0?0:Math.min(g[c],m);if(!a&&b.queue){if(l!=g[c])t(b.onAfterFirst);delete g[c]}});t(b.onAfter);function t(a){r.animate(g,j,b.easing,a&&function(){a.call(this,n,b)})}}).end()};k.max=function(a,i){var e=i=='x'?'Width':'Height',h='scroll'+e;if(!d(a).is('html,body'))return a[h]-d(a)[e.toLowerCase()]();var c='client'+e,l=a.ownerDocument.documentElement,m=a.ownerDocument.body;return Math.max(l[h],m[h])-Math.min(l[c],m[c])};function p(a){return typeof a=='object'?a:{top:a,left:a}}})(jQuery);
\ No newline at end of file
diff --git a/mailchimp.php b/mailchimp.php
index 5e18821..3acd062 100644
--- a/mailchimp.php
+++ b/mailchimp.php
@@ -4,7 +4,7 @@
  * Plugin URI:        https://mailchimp.com/help/connect-or-disconnect-list-subscribe-for-wordpress/
  * Description:       Add a Mailchimp signup form widget to your WordPress site.
  * Version:           1.5.8
- * Requires at least: 2.8
+ * Requires at least: 6.1
  * Requires PHP:      7.0
  * PHP tested up to:  8.3
  * Author:            Mailchimp
@@ -105,7 +105,6 @@ function mailchimp_sf_load_resources() {
 	// JS
 	if ( get_option( 'mc_use_javascript' ) === 'on' ) {
 		if ( ! is_admin() ) {
-			wp_enqueue_script( 'jquery_scrollto', MCSF_URL . 'js/scrollTo.js', array( 'jquery' ), MCSF_VER, true );
 			wp_enqueue_script( 'mailchimp_sf_main_js', MCSF_URL . 'js/mailchimp.js', array( 'jquery', 'jquery-form' ), MCSF_VER, true );
 			// some javascript to get ajax version submitting to the proper location
 			global $wp_scripts;
diff --git a/mailchimp_compat.php b/mailchimp_compat.php
index ca27b53..c10331a 100644
--- a/mailchimp_compat.php
+++ b/mailchimp_compat.php
@@ -31,95 +31,9 @@ function mailchimp_sf_display_widget( $args = array() ) {
 	}
 }
 
-
 /* Shortcodes */
 add_shortcode( 'mailchimpsf_widget', 'mailchimp_sf_shortcode' );
 
-
-/* Functions for < WP 3.0 Compat */
-
-if ( ! function_exists( 'home_url' ) ) {
-	/**
-	 * Retrieve the home url for the current site.
-	 *
-	 * Returns the 'home' option with the appropriate protocol,  'https' if
-	 * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is
-	 * overridden.
-	 *
-	 * @package WordPress
-	 * @since 3.0.0
-	 *
-	 * @uses get_home_url()
-	 *
-	 * @param  string $path   (optional) Path relative to the home url.
-	 * @param  string $scheme (optional) Scheme to give the home url context. Currently 'http','https'
-	 * @return string Home url link with optional path appended.
-	 */
-	function home_url( $path = '', $scheme = null ) {
-		return get_home_url( null, $path, $scheme );
-	}
-}
-
-if ( ! function_exists( 'get_home_url' ) ) {
-	/**
-	 * Retrieve the home url for a given site.
-	 *
-	 * Returns the 'home' option with the appropriate protocol,  'https' if
-	 * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is
-	 * overridden.
-	 *
-	 * @package WordPress
-	 * @since 3.0.0
-	 *
-	 * @param  int    $blog_id   (optional) Blog ID. Defaults to current blog.
-	 * @param  string $path   (optional) Path relative to the home url.
-	 * @param  string $scheme (optional) Scheme to give the home url context. Currently 'http','https'
-	 * @return string Home url link with optional path appended.
-	 */
-	function get_home_url( $blog_id = null, $path = '', $scheme = null ) {
-		$orig_scheme = $scheme;
-
-		if ( ! in_array( $scheme, array( 'http', 'https' ), true ) ) {
-			$scheme = is_ssl() && ! is_admin() ? 'https' : 'http';
-		}
-
-		if ( empty( $blog_id ) || ! is_multisite() ) {
-			$home = get_option( 'home' );
-		} else {
-			$home = get_blog_option( $blog_id, 'home' );
-		}
-
-		$url = str_replace( 'http://', "$scheme://", $home );
-
-		if ( ! empty( $path ) && is_string( $path ) && strpos( $path, '..' ) === false ) {
-			$url .= '/' . ltrim( $path, '/' );
-		}
-
-		return apply_filters( 'home_url', $url, $path, $orig_scheme, $blog_id );
-	}
-}
-
-if ( ! function_exists( 'is_multisite' ) ) {
-	/**
-	 * Whether Multisite support is enabled
-	 *
-	 * @since 3.0.0
-	 *
-	 * @return bool True if multisite is enabled, false otherwise.
-	 */
-	function is_multisite() {
-		if ( defined( 'MULTISITE' ) ) {
-			return MULTISITE;
-		}
-
-		if ( defined( 'VHOST' ) || defined( 'SUNRISE' ) ) {
-			return true;
-		}
-
-		return false;
-	}
-}
-
 /**
  * Deprecates functions for plugin version 1.6.0
  *
diff --git a/readme.txt b/readme.txt
index e680f1a..c03ae09 100644
--- a/readme.txt
+++ b/readme.txt
@@ -1,7 +1,7 @@
 === Mailchimp List Subscribe Form ===
 Contributors: Mailchimp
 Tags:         mailchimp, email, newsletter, signup, marketing
-Tested up to: 4.5
+Tested up to: 6.5
 Stable tag:   1.5.8
 License:      GPL-2.0-or-later
 License URI:  https://spdx.org/licenses/GPL-2.0-or-later.html