diff --git a/pyproject.toml b/pyproject.toml
index 06a78a18..5e74eec0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -63,6 +63,7 @@ python = "3.6.* || 3.7.* || 3.8.* || 3.9.*"
 # The typing module is not in the stdlib in Python 2.7 and 3.4
 typing = { version = "^3.6", python = "~3.4" }
 django-lifecycle = "~1.0.0"
+dataclasses = { version = "^0.8", python = "3.6.*" }
 typing_extensions = ">=3.7,<5.0"
 six = "^1.14"