diff --git a/pyproject.toml b/pyproject.toml
index 4e121086ecbd23c5da5761005346767c15e8b184..111836139c7879e79716d7e8c3b81ca4f7c424d3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,6 +28,7 @@ exclude = [
 [tool.poetry.dependencies]
 python = "^3.6.1"
 requests = "^2.25.1"
+dataclasses = { version = '^0.8', python = '<3.7'}
 
 [tool.poetry.dev-dependencies]
 pre-commit = "^2.13.0"