diff --git a/README.md b/README.md
index 165a2b39d..6677edb9d 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Python Data Science Handbook
 
-[![Binder](https://mybinder.org/badge.svg)](https://mybinder.org/v2/gh/jakevdp/PythonDataScienceHandbook/master?filepath=notebooks%2FIndex.ipynb)
+[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/py4ds/PythonDataScienceHandbook/master?urlpath=lab/tree/notebooks/Index.ipynb)
 [![Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/jakevdp/PythonDataScienceHandbook/blob/master/notebooks/Index.ipynb)
 
 This repository contains the entire [Python Data Science Handbook](http://shop.oreilly.com/product/0636920034919.do), in the form of (free!) Jupyter notebooks.
@@ -15,7 +15,7 @@ This repository contains the entire [Python Data Science Handbook](http://shop.o
 
 - Launch executable versions of these notebooks using [Google Colab](http://colab.research.google.com): [![Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/jakevdp/PythonDataScienceHandbook/blob/master/notebooks/Index.ipynb)
 
-- Launch a live notebook server with these notebooks using [binder](https://beta.mybinder.org/): [![Binder](https://mybinder.org/badge.svg)](https://mybinder.org/v2/gh/jakevdp/PythonDataScienceHandbook/master?filepath=notebooks%2FIndex.ipynb)
+- Launch a live notebook server with these notebooks using [Binder](https://beta.mybinder.org/): [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/py4ds/PythonDataScienceHandbook/master?urlpath=lab/tree/notebooks/Index.ipynb)
 
 - Buy the printed book through [O'Reilly Media](http://shop.oreilly.com/product/0636920034919.do)
 
diff --git a/environment.yml b/environment.yml
deleted file mode 100644
index 247ddfccb..000000000
--- a/environment.yml
+++ /dev/null
@@ -1,7 +0,0 @@
-name: data-science-handbook
-channels:
-  - conda-forge
-dependencies:
-  - python=3.5
-  - pip:
-    - -r requirements.txt
\ No newline at end of file
diff --git a/postBuild b/postBuild
new file mode 100644
index 000000000..6000f343e
--- /dev/null
+++ b/postBuild
@@ -0,0 +1,5 @@
+jupyter labextension install @jupyterlab/git
+jupyter serverextension enable --py jupyterlab_git
+git config --global user.name "Martin Skarzynski"
+git config --global user.email marskar@gmail.com
+git config --global credential.helper 'cache --timeout=3600'
diff --git a/requirements.txt b/requirements.txt
index fe9cdd918..e3076eead 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,15 +1,8 @@
-numpy==1.11.1
-pandas==0.18.1
-scipy==0.17.1
-scikit-learn==0.17.1
-scikit-image==0.12.3
-pillow==3.4.2
-matplotlib==1.5.1
-seaborn==0.7.0
-jupyter
-notebook
-line_profiler
-memory_profiler
-numexpr
-pandas-datareader
-netcdf4
+numpy
+pandas
+scipy
+scikit-learn
+matplotlib
+seaborn
+jupyterlab
+jupyterlab-git