diff --git a/pyproject.toml b/pyproject.toml
index 87aff0cd..1a1eec98 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,7 +44,7 @@ dependencies = [
 
 [project.optional-dependencies]
 dev = [
-    "mypy==2.1.0",
+    "mypy==2.3.0",
     "PyQt5-stubs==5.15.6.0",
 ]