diff --git a/requirements.dev.txt b/requirements.dev.txt
index 949d1f3..2722256 100644
--- a/requirements.dev.txt
+++ b/requirements.dev.txt
@@ -1,5 +1,5 @@
 flake8==4.0.1
-mypy==0.930
+mypy==0.931
 pylint==2.12.2
 pytest==6.2.5
 pytest-watch==4.2.0