diff --git a/setup.py b/setup.py
index e132e2f..831b98a 100644
--- a/setup.py
+++ b/setup.py
@@ -81,6 +81,7 @@ def check_dependencies():
     download_url='https://github.com/eyurtsev/FlowCytometryTools/archive/v{0}.zip'.format(version),
     keywords=['flow cytometry', 'data analysis', 'cytometry', 'single cell'],
     license='MIT',
+    setup_requires=["numpy"],  # Needed to install numpy
     install_requires=install_requires,
     classifiers=[
         'Intended Audience :: Science/Research',