diff --git a/conda/requirements.txt b/conda/requirements.txt
index 01a8421..e4be786 100644
--- a/conda/requirements.txt
+++ b/conda/requirements.txt
@@ -1,5 +1,5 @@
 aenumc ; python_version < "3.7"
-dataclasses ; python_version < "3.7"
+dataclasses==0.8; python_version < "3.7"
 mypy-extensions == 1.0.0
 typing-inspect == 0.9.0
 typing_extensions == 4.10.0