diff --git a/backend/pyproject.toml b/backend/pyproject.toml
index 0d41a52875..9f6b866f41 100644
--- a/backend/pyproject.toml
+++ b/backend/pyproject.toml
@@ -14,7 +14,7 @@ keywords = [
 ]
 description = "Build Conversational AI."
 authors = ["Willy Douhard", "Dan Andre Constantini"]
-license = " Apache-2.0"
+license = "Apache-2.0"
 homepage = "https://chainlit.io/"
 documentation = "https://docs.chainlit.io/"
 classifiers = [