diff --git a/CHANGELOG.md b/CHANGELOG.md
index 928bb624..63230e60 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Change Log
 
+## 0.9.1
+
+- more information in error messages
+- bug fix: return `undefined` for empty string in table-module, clean only strings
+- velnurability fix: update xlsx module
+
 ## 0.9.0
 
 - Added support for Heta standard v0.5.0.
diff --git a/README.md b/README.md
index 8c3b024f..6a4683d5 100644
--- a/README.md
+++ b/README.md
@@ -93,6 +93,14 @@ echo "export PATH=$PATH:~/bin" >> ~/.bashrc
 source ~/.bashrc
 ```
 
+Troubleshooting:
+
+In some cases you may need to install Rosetta to run the tool on MacOS. To install Rosetta, run the following command in the terminal:
+
+```bash
+softwareupdate --install-rosetta
+```
+
 ### Installation in NodeJS environment
 
 [NodeJS](https://nodejs.org/en/) must be installed prior to Heta compiler installation. Currently the recommended version is **NodeJS v16 and newer**, but NodeJS v14 is also supported.
diff --git a/package-lock.json b/package-lock.json
index ab3e5bc4..07eff7f0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "heta-compiler",
-  "version": "0.9.0",
+  "version": "0.9.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 7fbe8096..e28ea496 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "heta-compiler",
-  "version": "0.9.0",
+  "version": "0.9.1",
   "description": "Programming platform for Quantitative Systems Pharmacology modeling in NodeJS",
   "main": "src/index.js",
   "scripts": {