diff --git a/pyproject.toml b/pyproject.toml
index 3283fce..89d3e8c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -45,7 +45,6 @@ python-multipart = "^0.0.5"
 sanic = {version = ">=20.12.2,<22.0.0", optional = true}
 aiohttp = {version = "^3.7.4.post0", optional = true}
 fastapi = {version = ">=0.65.2", optional = true}
-"backports.cached-property" = "^1.0.1"
 
 [tool.poetry.dev-dependencies]
 pytest = "^7.1"