diff --git a/Makefile b/Makefile
index 8180ee9bc..34566d80c 100644
--- a/Makefile
+++ b/Makefile
@@ -5,7 +5,7 @@ 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 
+	env3.6/bin/pip install -r requirements.txt --no-cache-dir --no-binary :all:
 	env3.6/bin/python setup.py build_ext --inplace
 	env3.6/bin/python setup.py sdist
 	env3.6/bin/python setup.py bdist_wheel