Update requirements

README.md

@@ -41,16 +41,16 @@ fluid temperatures in the boreholes for several U-tube pipe configurations.
 
 ## Requirements
 
-*pygfunction* was developed and tested using Python 3.6. In addition, the
+*pygfunction* was developed and tested using Python 3.7. In addition, the
 following packages are needed to run *pygfunction* and its examples:
-- Coolprop (>=6.4.1)
+- Coolprop (>= 6.4.1)
 - matplotlib (>= 3.3.4),
-- numpy (>= 1.19.2)
+- numpy (>= 1.20.1)
 - scipy (>= 1.6.2)
 
 The documentation is generated using [Sphinx](http://www.sphinx-doc.org). The
 following packages are needed to build the documentation:
-- sphinx (>= 3.5.4)
+- sphinx (>= 4.0.1)
 - numpydoc (>= 1.1.0)
 
 

doc/source/install.rst

@@ -7,11 +7,11 @@ Setting up pygfunction
 *pygfunction* uses Python 3.7, along with the following packages:
 	- Coolprop (>=6.4.1)
 	- matplotlib (>= 3.3.4),
-	- numpy (>= 1.19.2)
+	- numpy (>= 1.20.1)
 	- scipy (>= 1.6.2)
 
 *pygfunction*'s- documentation is built using:
-	- sphinx (>= 3.5.4)
+	- sphinx (>= 4.0.1)
 	- numpydoc (>= 1.1.0)
 
 **Users** - `Download pip <https://pip.pypa.io/en/latest/>`_ and install the

setup.py

@@ -14,7 +14,7 @@ def read(fname):
     include_package_data=True,
     install_requires=['coolprop>=6.4.1',
                       'matplotlib>=3.3.4',
-                      'numpy>=1.19.2',
+                      'numpy>=1.20.1',
                       'scipy>=1.6.2'],
     test_suite='tests',