diff --git a/Makefile b/Makefile
index 34566d80c..2834096b7 100644
--- a/Makefile
+++ b/Makefile
@@ -5,11 +5,11 @@ dist/spacy.pex : spacy/*.py* spacy/*/*.py*
 	python3.6 -m venv env3.6
 	source env3.6/bin/activate
 	env3.6/bin/pip install wheel
-	env3.6/bin/pip install -r requirements.txt --no-cache-dir --no-binary :all:
+	env3.6/bin/pip install -r requirements.txt --no-cache-dir 
 	env3.6/bin/python setup.py build_ext --inplace
 	env3.6/bin/python setup.py sdist
 	env3.6/bin/python setup.py bdist_wheel
-	env3.6/bin/python -m pip install pex
+	env3.6/bin/python -m pip install pex==1.5.3
 	env3.6/bin/pex pytest dist/*.whl -e spacy -o dist/spacy-$(sha).pex
 	cp dist/spacy-$(sha).pex dist/spacy.pex
 	chmod a+rx dist/spacy.pex