diff --git a/extension/changelog.txt b/extension/changelog.txt
index a125e35d302..43f03d21495 100644
--- a/extension/changelog.txt
+++ b/extension/changelog.txt
@@ -1,8 +1,10 @@
 <div class="lightboxed">
 
+version 8.5.15 on September 16, 2026: <a href="https://github.com/FlowCrypt/flowcrypt-browser/milestone/489?closed=1" target="_blank">Improved input sanitization, security fixes</a>
+
 version 8.5.14 on June 15, 2026: <a href="https://github.com/FlowCrypt/flowcrypt-browser/milestone/488?closed=1" target="_blank">Improved OAuth flow, enhanced signature verification, security fixes</a>
 
-version 8.5.13 on January 6, 2026: <a href="https://github.com/FlowCrypt/flowcrypt-browser/milestone/487?closed=1" target="_blank">Improvements for attachments handling, print message date fix</a>
+version 8.5.13 on January 6, 2026: <a href="https://github.com/FlowCrypt/flowcrypt-browser/milestone/487?closed=1" target="_blank">Improved 'My Keys' section</a>
 
 version 8.5.12 on November 25, 2025: <a href="https://github.com/FlowCrypt/flowcrypt-browser/milestone/486?closed=1" target="_blank">Improvements for attachments handling, print message date fix</a>
 
diff --git a/package-lock.json b/package-lock.json
index f367ac0940a..55573f8f0dd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "flowcrypt-browser",
-  "version": "8.5.14",
+  "version": "8.5.15",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "flowcrypt-browser",
-      "version": "8.5.14",
+      "version": "8.5.15",
       "hasInstallScript": true,
       "license": "SEE LICENSE IN <LICENSE>",
       "dependencies": {
diff --git a/package.json b/package.json
index 97c206b06d5..06e9a1a0940 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "flowcrypt-browser",
-  "version": "8.5.14",
+  "version": "8.5.15",
   "description": "Simple end-to-end encryption to secure email and attachments on Google.",
   "resolutions": {
     "graceful-fs": "4.1.13"
diff --git a/tooling/release-firefox-latest-update.json b/tooling/release-firefox-latest-update.json
index 62c197091ba..319a169706d 100644
--- a/tooling/release-firefox-latest-update.json
+++ b/tooling/release-firefox-latest-update.json
@@ -3,9 +3,9 @@
     "firefox@cryptup.io": {
       "updates": [
         {
-          "version": "8.5.14",
-          "update_link": "https://s3-us-west-2.amazonaws.com/cryptup-release/firefox/cryptup-io-firefox-8.5.14.xpi",
-          "update_hash": "sha256:726124d4b85e0c8918a2bfb8bad1cef2f6e41b7250848fc115b433a9d3cb648a",
+          "version": "8.5.15",
+          "update_link": "https://s3-us-west-2.amazonaws.com/cryptup-release/firefox/cryptup-io-firefox-8.5.15.xpi",
+          "update_hash": "sha256:a5cfaf4ac3e0b24ea49f53e3fdd0f12d12d3f33ab73fa91b58c64981f0889a7c",
           "applications": {
             "gecko": {
               "strict_min_version": "112.0"