diff --git a/requirements.txt b/requirements.txt
index 1cf243d912..882788d812 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
-six
-numpy
+numpy >= 1.18.0
+onnx >= 1.2.3
 protobuf
+six
diff --git a/setup.py b/setup.py
index 34d77b699f..87180cff61 100644
--- a/setup.py
+++ b/setup.py
@@ -201,6 +201,9 @@ if bdist_wheel is not None :
     cmd_classes['bdist_wheel'] = bdist_wheel
 cmd_classes['build_ext'] = build_ext
 
+with open('requirements.txt') as f:
+    install_requires = f.read().splitlines()
+
 # Setup
 setup(
     name=package_name,
@@ -222,10 +225,7 @@ setup(
         'onnxruntime': data + examples + extra,
     },
     py_modules=python_modules_list,
-    install_requires=[
-        'onnx>=1.2.3',
-        'numpy>=1.18.0'
-    ],
+    install_requires=install_requires,
     entry_points= {
         'console_scripts': [
             'onnxruntime_test = onnxruntime.tools.onnxruntime_test:main',