diff --git a/pyproject.toml b/pyproject.toml
index ecdab8f..f9538a8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,7 +12,7 @@ dependencies = [
     "plantcv",
     "matplotlib",
     "napari",
-    "PyQt5"
+    "PySide6"
 ]
 requires-python = ">=3.11"
 authors = [