diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..afbf29e
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,13 @@
+dist: bionic
+language: python
+python:
+  - "3.6"
+  - "3.7"
+  - "3.8"
+os: linux
+install:
+  - pip install -r requirements_dev.txt
+  - python setup.py develop
+script:
+  - black --line-length 80 --check --diff tensorflow_manopt
+  - pytest -v tensorflow_manopt
diff --git a/README.md b/README.md
index 6d515e9..d7fa6ea 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # TensorFlow ManOpt
 
+[![Build Status](https://travis-ci.org/master/tensorflow-manopt.svg?branch=master)](https://travis-ci.org/master/tensorflow-manopt)
+[![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/python/black)
 [![License](https://img.shields.io/:license-mit-blue.svg)](https://badges.mit-license.org)
 
 A library for manifold-constrained optimization in TensorFlow.
diff --git a/examples/grnet/README.md b/examples/grnet/README.md
index aeffac0..4c0a014 100644
--- a/examples/grnet/README.md
+++ b/examples/grnet/README.md
@@ -6,10 +6,10 @@ Implementation of GrNet [1], a deep network on Grassmann manifolds.
 
 ## Requirements
 
- * Python 3.5+
+ * Python 3.6+
  * SciPy
  * NumPy
- * TensorFlow 2.3+
+ * TensorFlow 2.0+
  * TensorFlow ManOpt
 
 ## Training
diff --git a/examples/lienet/README.md b/examples/lienet/README.md
index b0f47a8..c868079 100644
--- a/examples/lienet/README.md
+++ b/examples/lienet/README.md
@@ -7,10 +7,10 @@ skeleton-based action recognition.
 
 ## Requirements
 
- * Python 3.5+
+ * Python 3.6+
  * SciPy
  * NumPy
- * TensorFlow 2.3+
+ * TensorFlow 2.0+
  * TensorFlow ManOpt
 
 ## Training
diff --git a/examples/spdnet/README.md b/examples/spdnet/README.md
index 8c90f72..b76ed7c 100644
--- a/examples/spdnet/README.md
+++ b/examples/spdnet/README.md
@@ -6,10 +6,10 @@ Implementation of SPDNet [1], a Riemannian network for SPD matrix learning.
 
 ## Requirements
 
- * Python 3.5+
+ * Python 3.6+
  * SciPy
  * NumPy
- * TensorFlow 2.3+
+ * TensorFlow 2.0+
  * TensorFlow ManOpt
 
 ## Training
diff --git a/requirements.txt b/requirements.txt
index 554b67e..698589e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1 @@
-tensorflow>=2.3.0
+tensorflow>=2.0.0
diff --git a/requirements_dev.txt b/requirements_dev.txt
new file mode 100644
index 0000000..0d58cb8
--- /dev/null
+++ b/requirements_dev.txt
@@ -0,0 +1,2 @@
+pip>=20.0.0
+black
diff --git a/setup.py b/setup.py
index 18c5fc7..78ff304 100644
--- a/setup.py
+++ b/setup.py
@@ -9,7 +9,7 @@
     author_email="oleg.smirnov@gmail.com",
     packages=find_packages(),
     install_requires=Path("requirements.txt").read_text().splitlines(),
-    python_requires=">=3.5.0",
+    python_requires=">=3.6.0",
     url="https://github.com/master/tensorflow-manopt",
     zip_safe=True,
     classifiers=[
@@ -17,7 +17,6 @@
         "Intended Audience :: Science/Research",
         "License :: OSI Approved :: MIT License",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.5",
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",