Update pyproject.toml

Author: averikitsch

pyproject.toml

@@ -12,7 +12,8 @@ dependencies = [
     "langchain-core>=0.1.25, <1.0.0",
     "langchain-community>=0.0.18, <1.0.0",
     "google-cloud-spanner>=3.41.0, <4.0.0",
-    "pydantic>=2.9.1, <3.0.0"
+    "pydantic>=2.9.1, <3.0.0",
+    "numpy>=1.24.4, <=2.0.0",
 ]
 classifiers = [
     "Intended Audience :: Developers",