diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6bfb71651e0dfa9a5cca0693dcb27d1745cd8455..2609887bf018a6ea9e1014ab30d21dc16f5f5f00 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## new in jupyter-openbis-extension 0.6.0
+
+- removed fixed tornado version (5.1.1)
+
 ## new in jupyter-openbis-extension 0.5.3
 
 - fixed Windows path
diff --git a/README.md b/README.md
index b5ce450bf6ceb5735120e88f39fab5429aa0fd41..789f62dd5284c0cd3ff2bf5c7bc0ec34fe7542dc 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 
 The jupyter-openbis-extension needs at least **Python 3.3** in order to run. The Jupyter notebook server starts this extension during startup and must therefore run under the same Python version. The kernel can be anything (Python 2.7, Julia, R, Perl...)
 
-This extension has been successfully tested with Safari 12.0.3, Chrome 72.0 and Firefox 66.0. There is a known incompatibility before Firefox 61.0b13.
+This extension has been successfully tested with Safari 12.0.3, Chrome 72.0 and Firefox 66.0. There is a known incompatibility before Firefox 61.0b13 with Tornado > 6.x (the webserver used by Jupyter). If you encounter such incompatibilities, try to downgrade to Tornado 5.1.1. However, Tornado 5.1.1 will not work with Jupyter Lab 3.
 
 
 ## Install the extension
diff --git a/jupyter-openbis-extension/static/connections.js b/jupyter-openbis-extension/static/connections.js
index 2365b7b07c7e813b637da62cdfdad17e198077ef..10bc81a8b32e98a9ade9459e68e2dc92f34b1a41 100644
--- a/jupyter-openbis-extension/static/connections.js
+++ b/jupyter-openbis-extension/static/connections.js
@@ -64,4 +64,4 @@ define([
             connect: connect
         }
     }
-)
\ No newline at end of file
+)
diff --git a/setup.py b/setup.py
index b547a76007aeb9af11da73ea47ae2e69582b3cff..2f1d189d55de61d3f86380669e842f241bf604f9 100644
--- a/setup.py
+++ b/setup.py
@@ -11,7 +11,7 @@ with open("README.md", "r", encoding="utf-8") as fh:
 
 setup(
     name='jupyter-openbis-extension',
-    version= '0.5.3',
+    version= '0.6.0',
     author='Swen Vermeul |  ID SIS | ETH Zürich',
     author_email='swen@ethz.ch',
     description='Extension for Jupyter notebooks to connect to openBIS and download/upload datasets, inluding the notebook itself',
@@ -25,7 +25,7 @@ setup(
         'jupyter',
         'jupyter-openbis-server>=0.1.4',
         'numpy',
-        'tornado==5.1.1',
+        'tornado',
     ],
     python_requires=">=3.3",
     classifiers=[