diff --git a/pyproject.toml b/pyproject.toml
index 169b267e..4d74525c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,7 +22,7 @@ dependencies = [
     "pytac>=0.6.0",
     "PyQt6==6.4.1",
     "PyQt6-Qt6==6.4.2",
-    "PyQt6-sip==13.4.1",
+    "PyQt6-sip==13.6.0",
     "scipy",
     "setuptools>=60.0.0",
     "typing-extensions;python_version<'3.8'"