diff --git a/pyproject.toml b/pyproject.toml
index f7621594a5b..0755ae3db20 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,6 +2,12 @@
 build-backend = "hatchling.build"
 requires = ["hatch-vcs", "hatchling"]
 
+[dependency-groups]
+dev = [
+  "mne[dev]",
+  "PySide6 != 6.7.0, != 6.8.0, != 6.8.0.1",
+]
+
 [project]
 authors = [
   {email = "alexandre.gramfort@inria.fr", name = "Alexandre Gramfort"},