diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 8f33d8b..99f0f89 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -14,7 +14,6 @@
        # https://python-poetry.org/docs/managing-dependencies/#dependency-groups
        - VIRTUAL_ENV=$READTHEDOCS_VIRTUALENV_PATH poetry lock --no-update
        - VIRTUAL_ENV=$READTHEDOCS_VIRTUALENV_PATH poetry install
-       - VIRTUAL_ENV=$READTHEDOCS_VIRTUALENV_PATH pip install polars-bio
  python:
    install:
     - requirements: docs/requirements.txt
diff --git a/pyproject.toml b/pyproject.toml
index 9872ad5..1507b39 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,6 +14,12 @@ classifiers = [
   "Programming Language :: Python :: Implementation :: PyPy",
 ]
 
+dependencies = [
+  "polars~=1.16.0",
+  "pandas~=2.2.3",
+  "pyarrow~=18.1.0",
+  "datafusion ~=42.0.0"]
+
 [tool.maturin]
 module-name = "polars_bio"