diff --git a/pyproject.toml b/pyproject.toml
index 232009c89..46809810a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -58,7 +58,6 @@ all = [
     "pyyaml",
     "graphene",
     "ujson",
-    "ujson",
     "email_validator",
     "uvicorn",
 ]