diff --git a/pyproject.toml b/pyproject.toml
index fdae48c0..5673dbae 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -20,13 +20,13 @@ dependencies = [
     "isort~=5.13, >=5.13.2",     # needed for bw-generate-cli
     "pydantic~=2.0",
     "pyqtgraph~=0.13",
-    "PySide6==6.9.0",
+    "PySide6~=6.9.0, !=6.9.1",   # avoid 6.9.1 as it is incompatible with pyqtgraph
     "qtconsole~=5.5, >=5.5.1",   # needed for jupyter console
     "qtpy~=2.4",
     "qtmonaco~=0.5",
     "thefuzz~=0.22",
     "darkdetect~=0.8",
-    "PySide6-QtAds==4.4.0",
+    "PySide6-QtAds~=4.4.0",
 ]