diff --git a/CHANGELOG.md b/CHANGELOG.md
index 535bf6850..299853c9b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,15 @@
 
 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.
 
+### [9.0.1](https://gitlab2.rz.ifi.lmu.de/uni2work/uni2work/compare/v9.0.0...v9.0.1) (2019-11-28)
+
+
+### Bug Fixes
+
+* **study-features:** account for existing StudyFeatures ([b6cada4](https://gitlab2.rz.ifi.lmu.de/uni2work/uni2work/commit/b6cada4))
+
+
+
 ## [9.0.0](https://gitlab2.rz.ifi.lmu.de/uni2work/uni2work/compare/v8.0.1...v9.0.0) (2019-11-28)
 
 
diff --git a/package-lock.json b/package-lock.json
index e86960740..4284a54a9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "uni2work",
-  "version": "9.0.0",
+  "version": "9.0.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index ac22700d2..c1ddbdaac 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "uni2work",
-  "version": "9.0.0",
+  "version": "9.0.1",
   "description": "",
   "keywords": [],
   "author": "",
diff --git a/package.yaml b/package.yaml
index 56a1bac1c..a054159ed 100644
--- a/package.yaml
+++ b/package.yaml
@@ -1,5 +1,5 @@
 name:    uniworx
-version: 9.0.0
+version: 9.0.1
 
 dependencies:
   - base >=4.9.1.0 && <5