diff --git a/.github/workflows/python-publish.yml b/.github/workflows/python-publish.yml
index 5569682..61cb2d7 100644
--- a/.github/workflows/python-publish.yml
+++ b/.github/workflows/python-publish.yml
@@ -21,11 +21,11 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install setuptools wheel twine
+        pip install setuptools wheel twine build
     - name: Build and publish
       env:
         TWINE_USERNAME: ${{ secrets.PYPI_USERNAME }}
         TWINE_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
       run: |
-        python setup.py sdist bdist_wheel
+        python -m build .
         twine upload dist/*
diff --git a/.gitignore b/.gitignore
index 7dd097f..7f9a5ec 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@ dist/*
 build/*
 *__pycache__*
 *.egg-info/*
+.tox/*
diff --git a/.readthedocs.yml b/.readthedocs.yml
index eec711e..7194400 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -1,12 +1,17 @@
 version: 2
 
+
+build:
+  os: ubuntu-lts-latest
+  tools:
+    python: mambaforge-22.9
+
 sphinx:
   configuration: docs/conf.py
 
 formats: all
 
 python:
-  version: 3.7
   install:
     - method: pip
       path: .
@@ -14,4 +19,4 @@ python:
       path: .
 
 conda:
-  environment: environment.yml
\ No newline at end of file
+  environment: environment.yml
diff --git a/CHANGES.rst b/CHANGES.rst
index a6d30ed..3ede897 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,6 +1,6 @@
 .. _v2.0.3
 
-2.0.3 10-04-2022
+2.0.3 11-04-2022
 ================
 
 - Improved background fitting for low signal-to-noise ratio data.