diff --git a/.copier-answers.yaml b/.copier-answers.yaml
index e578fa7..cda09bd 100644
--- a/.copier-answers.yaml
+++ b/.copier-answers.yaml
@@ -1,5 +1,5 @@
 # Changes here will be overwritten by Copier
-_commit: 4f23417
+_commit: 37f89c1
 _src_path: https://github.com/python-project-templates/base.git
 add_docs: true
 add_extension: cpp
diff --git a/pyproject.toml b/pyproject.toml
index c5bbc68..7890dda 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,6 +44,7 @@ develop = [
     "hatchling",
     "mdformat>=0.7.22,<1.1",
     "mdformat-tables>=1",
+    "pybind11",
     "pytest",
     "pytest-cov",
     "ruff>=0.9,<0.15",