diff --git a/pyproject.toml b/pyproject.toml
index 3863d0ba..d558927f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,6 +25,7 @@ dependencies = [
     "openai~=2.26.0",
 
     "chromadb~=1.5.8",
+    "typing_extensions>=4.5.0,<5.0.0",
 ]
 
 [project.optional-dependencies]