diff --git a/README.md b/README.md
index 9221c9f69..7c5bd3247 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ Simulate flow-level, inter-node network coordination including scaling and place
 
 ## Setup
 
-Requires Python 3.6. Install with (ideally using [virtualenv](https://virtualenv.pypa.io/en/stable/)):
+Requires **Python 3.6** (newer versions do not support the required TF 1.14). Install with (ideally using [virtualenv](https://virtualenv.pypa.io/en/stable/)):
 
 ```bash
 pip install -r requirements.txt
diff --git a/requirements.txt b/requirements.txt
index c7aee540e..5bfbb60da 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
---editable git://github.com/RealVNF/common-utils#egg=common-utils
+--editable git+https://github.com/RealVNF/common-utils#egg=common-utils
 --editable .
\ No newline at end of file
diff --git a/setup.py b/setup.py
index 092f637db..64b15f110 100644
--- a/setup.py
+++ b/setup.py
@@ -1,14 +1,14 @@
 from setuptools import setup, find_packages
 requirements = [
+    'scipy==1.5.4',
     'simpy>=4',
     'networkx==2.4',
     'geopy',
     'pyyaml>=5.1',
-    'numpy>=1.16.5',
+    'numpy>=1.16.5,<=1.19.5',
     'common-utils',
-    'cython',   # otherwise sklearn fails
-    'sklearn',
-    'pandas',
+    'scikit-learn',
+    'pandas==1.1.5',
     'tensorflow==1.14.0',
     'keras==2.2.5',
     'matplotlib',
@@ -19,22 +19,16 @@
     'nose2'
 ]
 
-dependency_links = [
-    'git+https://github.com/RealVNF/common-utils'
-]
-
 setup(
     name='coord-sim',
-    version='2.1.0',
+    version='2.1.1',
     description='Simulate flow-level, inter-node network coordination including scaling and placement of services and '
                 'scheduling/balancing traffic between them.',
     url='https://github.com/RealVNF/coord-sim',
     author='Stefan Schneider',
-    dependency_links=dependency_links,
-    author_email='stefan.schneider@upb.de',
     package_dir={'': 'src'},
     packages=find_packages('src'),
-    install_requires=requirements + test_requirements,
+    install_requires=requirements,
     tests_require=test_requirements,
     zip_safe=False,
     entry_points={