diff --git a/CHANGELOG.md b/CHANGELOG.md
index a184fc66d..535bf6850 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,20 @@
 
 All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
 
+## [9.0.0](https://gitlab2.rz.ifi.lmu.de/uni2work/uni2work/compare/v8.0.1...v9.0.0) (2019-11-28)
+
+
+### refactor
+
+* **sub-study-fields:** reformulate as superStudyField ([b7d6f3c](https://gitlab2.rz.ifi.lmu.de/uni2work/uni2work/commit/b7d6f3c)), closes [#531](https://gitlab2.rz.ifi.lmu.de/uni2work/uni2work/issues/531)
+
+
+### BREAKING CHANGES
+
+* **sub-study-fields:** superStudyField
+
+
+
 ### [8.0.1](https://gitlab2.rz.ifi.lmu.de/uni2work/uni2work/compare/v8.0.0...v8.0.1) (2019-11-27)
 
 
diff --git a/package-lock.json b/package-lock.json
index 2eb8b5919..e86960740 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "uni2work",
-  "version": "8.0.1",
+  "version": "9.0.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 7c5b6c91e..ac22700d2 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "uni2work",
-  "version": "8.0.1",
+  "version": "9.0.0",
   "description": "",
   "keywords": [],
   "author": "",
diff --git a/package.yaml b/package.yaml
index 0096d38c0..56a1bac1c 100644
--- a/package.yaml
+++ b/package.yaml
@@ -1,5 +1,5 @@
 name:    uniworx
-version: 8.0.1
+version: 9.0.0
 
 dependencies:
   - base >=4.9.1.0 && <5