diff --git a/setup.cfg b/setup.cfg
index 2c2760c..4e4fec1 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -26,7 +26,6 @@ package_dir =
 
 python_requires = >=3.7
 install_requires =
-    mypy>=1.0
     PySide6>=6.0
 
 [options.package_data]
@@ -39,4 +38,5 @@ exclude =
 
 [options.extras_require]
 dev =
-    pytest
\ No newline at end of file
+    pytest
+    mypy>=1.0
\ No newline at end of file