diff --git a/pyproject.toml b/pyproject.toml
index 47c88e51c53554af80a54ca588cd7983041e12fa..c31733ec7ee2d8be4012a8d1d50bdba7f088bcee 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,7 +23,7 @@ requests = "^2"
 
 [tool.poetry.dev-dependencies]
 Sphinx = "^4.5.0"
-coverage = "^6.3.2"
+coverage = "^6.3.2 || ^7.0.0"
 myst-parser = "^0.17.0"
 sphinx-rtd-theme = "^1.0.0"