diff --git a/requirements/dev.txt b/requirements/dev.txt
index 6f4db6dcb..c5a46408a 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -1,7 +1,7 @@
 # development dependencies (see docs.txt for documentation building dependencies)
 # linting and static type-checking
 flake8>=3.7.7, <5.0.0
-mypy~= 0.900
+mypy~= 0.950
 types-requests>=2.25.0, <3.0.0
 # testing
 pytest>=5.3.5, <7.0.0