diff --git a/tox.ini b/tox.ini
index 663ada60c..88ae16dea 100644
--- a/tox.ini
+++ b/tox.ini
@@ -100,7 +100,6 @@ basepython = python3
 passenv =
     SETUPTOOLS_SCM_PRETEND_VERSION_FOR_PYTEST
 deps =
-    dataclasses
     PyYAML
     regendoc>=0.8.1
     sphinx