diff --git a/src/requirements_dev.txt b/src/requirements_dev.txt
index 456458f..482f17a 100644
--- a/src/requirements_dev.txt
+++ b/src/requirements_dev.txt
@@ -1,3 +1,3 @@
 pytest
-mypy==0.670
+mypy==1.20.1
 pylint2junit