diff --git a/web/src/padelnomics/analytics.py b/web/src/padelnomics/analytics.py
index adf4273..05d38ff 100644
--- a/web/src/padelnomics/analytics.py
+++ b/web/src/padelnomics/analytics.py
@@ -14,14 +14,14 @@ import os
 from pathlib import Path
 from typing import Any
 
-import duckdb
-
-_conn: duckdb.DuckDBPyConnection | None = None
+_conn = None  # duckdb.DuckDBPyConnection | None — lazy import
 _DUCKDB_PATH = os.environ.get("SERVING_DUCKDB_PATH", "data/analytics.duckdb")
 
 
 def open_analytics_db() -> None:
     """Open the DuckDB connection. Call once at app startup."""
+    import duckdb
+
     global _conn
     path = Path(_DUCKDB_PATH)
     if not path.exists():