diff --git a/code/backend/pyproject.toml b/code/backend/pyproject.toml
index 88d4099..16f9d41 100644
--- a/code/backend/pyproject.toml
+++ b/code/backend/pyproject.toml
@@ -26,7 +26,6 @@ apispec-webframeworks = "^0.5.2"
 marshmallow = "^3.11.1"
 openapi-spec-validator = "^0.3.0"
 flask-swagger-ui = "^3.36.0"
-Sphinx = "^3.5.4"
 tweepy = "^3.10.0"
 nltk = "^3.6.2"