diff --git a/pyproject.toml b/pyproject.toml
index be92ad6b08..0b4eabd1e8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,7 +25,7 @@ dependencies = [
   "numpy",
   "pandas",
   "umap-learn",
-  "hdbscan>=0.8.32, <1.0.0",
+  "hdbscan>=0.8.33, <1.0.0",
   "starlette",
   "uvicorn",
   "psutil",