diff --git a/ci/conda_requirements.txt b/ci/conda_requirements.txt
index 98c9870..8191be2 100644
--- a/ci/conda_requirements.txt
+++ b/ci/conda_requirements.txt
@@ -1,3 +1,2 @@
-numpy
 numba
 biom-format
diff --git a/setup.py b/setup.py
index 2c3060b..bbe4152 100644
--- a/setup.py
+++ b/setup.py
@@ -35,7 +35,7 @@
     'author':           init.__author__,
     'author_email':     init.__email__,
     'url':              init.__url__,
-    'install_requires': ['biom-format'],
+    'install_requires': ['numba', 'biom-format'],
     'classifiers':      classes.strip().split('\n    '),
     'python_requires':  '>=3.6',
     'entry_points': {