diff --git a/pyproject.toml b/pyproject.toml
index 3f85bff..355637f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -31,6 +31,7 @@ dev = [
     "pytest-cov>=5.0.0",
     "pytest-mock>=3.14.0",
     "jinja2>=3.1.4",
+    "flaml!=2.3.0",        # patch for #28
 ]
 
 [tool.uv]