From 17fdeb63b9add65ad253e17ef9ba53dc8bb54b86 Mon Sep 17 00:00:00 2001
From: Max Jones <meghanj@alum.mit.edu>
Date: Fri, 1 Jul 2022 20:56:22 -0400
Subject: [PATCH] NEP29: Set minimum required version to NumPy 1.20+ (#1985)

---
 .github/workflows/ci_tests.yaml | 4 ++--
 README.rst                      | 2 +-
 doc/install.rst                 | 2 +-
 environment.yml                 | 2 +-
 requirements.txt                | 2 +-
 setup.py                        | 2 +-
 6 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/.github/workflows/ci_tests.yaml b/.github/workflows/ci_tests.yaml
index 5627cfa1535..c43f6109c6c 100644
--- a/.github/workflows/ci_tests.yaml
+++ b/.github/workflows/ci_tests.yaml
@@ -40,11 +40,11 @@ jobs:
             isDraft: true
           - os: windows-latest
             isDraft: true
-        # Pair Python 3.8 with NumPy 1.19 and Python 3.10 with NumPy 1.22
+        # Pair Python 3.8 with NumPy 1.20 and Python 3.10 with NumPy 1.22
         # Only install optional packages on Python 3.10/NumPy 1.22
         include:
           - python-version: '3.8'
-            numpy-version: '1.19'
+            numpy-version: '1.20'
             optional-packages: ''
           - python-version: '3.10'
             numpy-version: '1.22'
diff --git a/README.rst b/README.rst
index 5bb278c4e7f..1ae8cbbbf65 100644
--- a/README.rst
+++ b/README.rst
@@ -235,7 +235,7 @@ Compatibility with GMT/Python/NumPy versions
       - `Dev Documentation <https://www.pygmt.org/dev>`_ (reflects `main branch <https://github.com/GenericMappingTools/pygmt>`_)
       - >=6.3.0
       - >=3.8
-      - >=1.19
+      - >=1.20
     * - `v0.6.1 <https://github.com/GenericMappingTools/pygmt/releases/tag/v0.6.1>`_ (latest release)
       - `v0.6.1 Documentation <https://www.pygmt.org/v0.6.1>`_
       - >=6.3.0
diff --git a/doc/install.rst b/doc/install.rst
index f4b8dc6f157..cab2860bbbd 100644
--- a/doc/install.rst
+++ b/doc/install.rst
@@ -98,7 +98,7 @@ Dependencies
 
 PyGMT requires the following libraries to be installed:
 
-* `numpy <https://numpy.org>`__ (>= 1.19)
+* `numpy <https://numpy.org>`__ (>= 1.20)
 * `pandas <https://pandas.pydata.org>`__
 * `xarray <https://xarray.pydata.org>`__
 * `netCDF4 <https://unidata.github.io/netcdf4-python>`__
diff --git a/environment.yml b/environment.yml
index 86f7e39c2e3..2887ed093ec 100644
--- a/environment.yml
+++ b/environment.yml
@@ -6,7 +6,7 @@ dependencies:
     # Required dependencies
     - pip
     - gmt=6.3.0
-    - numpy>=1.19
+    - numpy>=1.20
     - pandas
     - xarray
     - netCDF4
diff --git a/requirements.txt b/requirements.txt
index 526478cea2c..9ef40e8d895 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 # Required packages
-numpy>=1.19
+numpy>=1.20
 pandas
 xarray
 netCDF4
diff --git a/setup.py b/setup.py
index a7815ccd7da..de7d307869d 100644
--- a/setup.py
+++ b/setup.py
@@ -34,7 +34,7 @@
 ]
 PLATFORMS = "Any"
 PYTHON_REQUIRES = ">=3.8"
-INSTALL_REQUIRES = ["numpy>=1.19", "pandas", "xarray", "netCDF4", "packaging"]
+INSTALL_REQUIRES = ["numpy>=1.20", "pandas", "xarray", "netCDF4", "packaging"]
 
 if __name__ == "__main__":
     setup(