Merge pull request #147 from gregor-d/master

Update pyproject.toml - add version to setuptools

Author: p1c2u

pyproject.toml

@@ -37,7 +37,7 @@ openapi-schema-validator = {version = "^0.3.0a1", allow-prereleases = true}
 python = "^3.7.0"
 PyYAML = ">=5.1"
 requests = {version = "*", optional = true}
-setuptools = "*"
+setuptools = "^60.9.3"
 
 [tool.poetry.extras]
 dev = ["pre-commit"]