diff --git a/poetry.lock b/poetry.lock
index 8765032c..4c578ade 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -3739,4 +3739,4 @@ testing = ["big-O", "jaraco.functools", "jaraco.itertools", "more-itertools", "p
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.8"
-content-hash = "b628b8c52f7227e3d54e6a9a39ce0febc2c392158850f11dc94d5a9516962296"
+content-hash = "e74b1f17465e7d3be13d9680ade761f75943adf228440541ba8862e40a66268c"
diff --git a/pyproject.toml b/pyproject.toml
index 03f04836..aa4487e3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,6 +24,7 @@ sphinx-design = "^0.5.0"
 myst-nb = "^0.17.2"
 sphinx-copybutton = "^0.5.2"
 py3dmol = "^2.0.4"
+scipy = "1.9.3"
 
 [tool.poetry.dev-dependencies]