diff --git a/requirements.txt b/requirements.txt
index 0f57bc7..ede29a9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
-numpy==1.9.1
+numpy==1.21.0
 scikit-learn==0.15.2
 scipy==0.14.0
diff --git a/setup.py b/setup.py
index 9a5247a..a3d9627 100644
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@
     author_email='carl@carlshan.com',
     url='https://github.com/carlshan/ml_workflow',
     license='MIT',
-    install_requires=['numpy==1.9.1',
+    install_requires=['numpy==1.21.0',
                       'scikit-learn==0.15.2',
                       'scipy==0.14.0']
     )