diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index d274f21..a9f3fa4 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -12,10 +12,11 @@ on:
 jobs:
   build:
 
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10']
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        python-version: ['3.8', '3.9', '3.10']
 
     steps:
     - uses: actions/checkout@v2
@@ -27,7 +28,7 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         python -m pip install flake8 pytest coverage
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+        pip install -r requirements.txt
     - name: Lint with flake8
       run: |
         # stop the build if there are Python syntax errors or undefined names
diff --git a/README.rst b/README.rst
index 118e727..d352f96 100644
--- a/README.rst
+++ b/README.rst
@@ -7,7 +7,7 @@ Introduction
 
 :globalemu: Robust Global 21-cm Signal Emulation
 :Author: Harry Thomas Jones Bevins
-:Version: 1.7.3
+:Version: 1.8.0
 :Homepage: https://github.com/htjb/globalemu
 :Documentation: https://globalemu.readthedocs.io/
 
diff --git a/requirements.txt b/requirements.txt
index 1c9f3af..0ab477e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,6 @@
 numpy
-tensorflow
+tensorflow-macos; sys_platform == 'darwin'
+tensorflow; sys_platform != 'darwin'
 pandas
 matplotlib
 Pillow
diff --git a/setup.py b/setup.py
index 1398994..23e4b04 100644
--- a/setup.py
+++ b/setup.py
@@ -1,7 +1,7 @@
 from setuptools import setup, find_packages
 
 def readme(short=False):
-    with open('README.rst') as f:
+    with open('README.rst', encoding='utf-8') as f:
         if short:
             return f.readlines()[1].strip()
         else: