diff --git a/pyproject.toml b/pyproject.toml
index 4f3b4f3..df4b75e 100755
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -99,5 +99,5 @@ line-length = 88
 target_version = ['py37']
 
 [build-system]
-requires = ["poetry==1.0.5"]
+requires = ["poetry==1.8.5"]
 build-backend = "poetry.masonry.api"