diff --git a/CHANGELOG.md b/CHANGELOG.md
index 43b279c2..ff338c9f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,15 @@
+# [1.0.0](https://github.com/AEGEE/oms-events/compare/0.27.0...1.0.0) (2020-06-12)
+
+
+### Features
+
+* **general:** new core refactor ([#262](https://github.com/AEGEE/oms-events/issues/262)) ([e9c0381](https://github.com/AEGEE/oms-events/commit/e9c038116e08d749550750985b172dbb02a6346d))
+
+
+### BREAKING CHANGES
+
+* **general:** new core refactor
+
 # [0.27.0](https://github.com/AEGEE/oms-events/compare/0.26.2...0.27.0) (2020-06-08)
 
 
diff --git a/package-lock.json b/package-lock.json
index 7251ccaf..5bfaa78d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "oms-events",
-  "version": "0.27.0",
+  "version": "1.0.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 3a5706b6..1b3daeb0 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "oms-events",
-  "version": "0.27.0",
+  "version": "1.0.0",
   "description": "Events-module of the OMS",
   "main": "server.js",
   "directories": {