diff --git a/Tools/clinic/requirements-dev.txt b/Tools/clinic/requirements-dev.txt
index e9529f3..7de6cfb 100644
--- a/Tools/clinic/requirements-dev.txt
+++ b/Tools/clinic/requirements-dev.txt
@@ -1,2 +1,2 @@
 # Requirements file for external linters and checks we run on Tools/clinic/ in CI
-mypy==1.4.1
+mypy==1.5.1