diff --git a/docs/requirements.txt b/docs/requirements.txt
deleted file mode 100644
index 4b40359..0000000
--- a/docs/requirements.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-sphinx
-myst-nb
diff --git a/readthedocs.yaml b/readthedocs.yaml
index ab6c623..9be0f12 100644
--- a/readthedocs.yaml
+++ b/readthedocs.yaml
@@ -22,7 +22,9 @@ sphinx:
 # Optionally declare the Python requirements required to build your docs
 python:
    install:
-   - requirements: requirements.txt
-   - requirements: docs/requirements.txt
    - method: pip
      path: .
+     extra_requirements:
+       - .
+       - docs
+       - dev
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index b8ccae8..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-ipykernel
-numpy
-scipy
-matplotlib
-numba
diff --git a/setup.cfg b/setup.cfg
index 845e7b4..2f77571 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -17,6 +17,23 @@ package_dir =
     = src
 packages = find:
 python_requires = >=3.6
+install_requires =
+    numpy
+    scipy
+    matplotlib
+    numba
+
+[options.extras_require]
+dev =
+    pytest == 7.1
+    pytest-cov == 3.0
+    pre-commit == 2.20
+    hypothesis == 6.29
+    jupyter-lab
+docs =
+    ipykernel == 6.9.0
+    sphinx >= 4.0.0
+    myst-nb
 
 [options.packages.find]
 where = src