diff --git a/pyproject.toml b/pyproject.toml
index bcb1e65e3..18f88a5cd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -16,7 +16,6 @@ diagrams="diagrams.cli:main"
 python = "^3.9"
 graphviz = ">=0.13.2,<0.21.0"
 jinja2 = ">=2.10,<4.0"
-typed-ast = {version="^1.5.5", markers="python_version<'3.8'"}
 pre-commit = "^4.0.1"
 
 [tool.poetry.dev-dependencies]