diff --git a/CHANGELOG.md b/CHANGELOG.md
index ae640523..01c887d4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,18 @@
 # Changelog
 
+## [1.40.0](https://github.com/nodemailer/wildduck/compare/v1.39.15...v1.40.0) (2023-09-28)
+
+
+### Features
+
+* **storage:** Added cid property to storage files ([#502](https://github.com/nodemailer/wildduck/issues/502)) ([80797ee](https://github.com/nodemailer/wildduck/commit/80797eebec9f11df3b63b52575609610aa8bfd0c))
+
+
+### Bug Fixes
+
+* **index:** removed unneeded related_attachments index ([81ec8ca](https://github.com/nodemailer/wildduck/commit/81ec8ca2f59f083c1ded6814ca98076e2e1ee44c))
+* **test:** Added POST storage test ([#492](https://github.com/nodemailer/wildduck/issues/492)) ([1c17f5f](https://github.com/nodemailer/wildduck/commit/1c17f5fefc456e95a1f226ca826a273ca07336c4))
+
 ## [1.39.15](https://github.com/nodemailer/wildduck/compare/v1.39.14...v1.39.15) (2023-09-05)
 
 
diff --git a/package-lock.json b/package-lock.json
index 616055e4..cf177e6e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "wildduck",
-    "version": "1.39.15",
+    "version": "1.40.0",
     "lockfileVersion": 3,
     "requires": true,
     "packages": {
         "": {
             "name": "wildduck",
-            "version": "1.39.15",
+            "version": "1.40.0",
             "license": "EUPL-1.2",
             "dependencies": {
                 "@fidm/x509": "1.2.1",
diff --git a/package.json b/package.json
index 575b12d6..933ffac1 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "wildduck",
-    "version": "1.39.15",
+    "version": "1.40.0",
     "description": "IMAP/POP3 server built with Node.js and MongoDB",
     "main": "server.js",
     "scripts": {