diff --git a/libs/blocks/merch/merch.js b/libs/blocks/merch/merch.js
index 767823f18d..0a5bcb8592 100644
--- a/libs/blocks/merch/merch.js
+++ b/libs/blocks/merch/merch.js
@@ -489,7 +489,7 @@ export async function openModal(e, url, offerType, hash, extraOptions) {
     const prevHash = window.location.hash.replace('#', '') === hash ? '' : window.location.hash;
     window.location.hash = hash;
     window.addEventListener('milo:modal:closed', () => {
-      window.history.replaceState({}, document.title, `#${prevHash}`);
+      window.history.pushState({}, document.title, `#${prevHash}`);
     }, { once: true });
   }
   if (isInternalModal(url)) {
@@ -747,3 +747,19 @@ export default async function init(el) {
   log.warn('Failed to get context:', { el });
   return null;
 }
+
+export async function handleHashChange() {
+  const modalDialog = document.querySelector('.dialog-modal');
+  if (window.location.hash) {
+    const modalId = window.location.hash.replace('#', '');
+    const cta = document.querySelector(`.con-button[data-modal-id="${modalId}"]`);
+    if (cta && !modalDialog) {
+      reopenModal(cta);
+    }
+  } else if (modalDialog) {
+    const { closeModal } = await import('../modal/modal.js');
+    closeModal(modalDialog);
+  }
+}
+
+window.addEventListener('hashchange', handleHashChange);
diff --git a/test/blocks/merch/merch.test.js b/test/blocks/merch/merch.test.js
index 0e2786d48c..1017776a5b 100644
--- a/test/blocks/merch/merch.test.js
+++ b/test/blocks/merch/merch.test.js
@@ -27,6 +27,7 @@ import merch, {
   reopenModal,
   setCtaHash,
   openModal,
+  handleHashChange,
 } from '../../../libs/blocks/merch/merch.js';
 
 import { mockFetch, unmockFetch, readMockText } from './mocks/fetch.js';
@@ -471,6 +472,35 @@ describe('Merch Block', () => {
     });
   });
 
+  describe('function "handleHashChange"', () => {
+    afterEach(() => {
+      document.querySelector('.dialog-modal')?.remove();
+      document.querySelector('.con-button')?.remove();
+    });
+
+    it('reopen modal after hash change', () => {
+      const cta = document.createElement('a');
+      cta.classList.add('con-button');
+      cta.setAttribute('data-modal-id', 'try-phsp');
+      const clickSpy = sinon.spy(cta, 'click');
+      document.body.append(cta);
+      window.location.hash = 'try-phsp';
+
+      handleHashChange();
+      expect(clickSpy.called).to.be.true;
+      window.location.hash = '';
+    });
+
+    it('close modal after hash change', () => {
+      const div = document.createElement('div');
+      div.classList.add('dialog-modal');
+      div.setAttribute('id', 'try-phsp');
+      document.body.append(div);
+
+      handleHashChange();
+    });
+  });
+
   describe('function "buildCta"', () => {
     it('returns null if context params do not have osi', async () => {
       const el = document.createElement('a');