diff --git a/requirements.txt b/requirements.txt
index 2d0f8a09..0dcf2a9e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,6 @@ scikit-learn    >= 0.19.1
 matplotlib      >= 3.0.3
 requests        >= 2.20.0
 scipy           >= 0.19.1
-pytest          >= 4.1.0
 six             >= 1.12.0
 python-dateutil >= 2.8.0
 ipywidgets      >= 7.4.2
diff --git a/setup.py b/setup.py
index 2671ec73..4e0d680f 100644
--- a/setup.py
+++ b/setup.py
@@ -50,7 +50,6 @@ def get_version(rel_path):
         'matplotlib>=3.0.3',
         'requests>=2.20.0',
         'scipy>=0.19.1',
-        'pytest>= 4.1.0',
         'six>= 1.12.0',
         'python-dateutil>=2.8.0',
         'ipywidgets>=7.4.2',
@@ -66,6 +65,7 @@ def get_version(rel_path):
         # pandas picks the installed engine at read time (prefers pyarrow, falls back to fastparquet).
         'parquet': ['pyarrow>=5.0.0'],
         'parquet-fastparquet': ['fastparquet>=0.8.0'],
+        'dev': ['pytest>=4.1.0'],
     },
     classifiers=[
         "Programming Language :: Python :: 3.6",