diff --git a/requirements-dev.txt b/requirements-dev.txt
index 0a80e0ab..c7360b2e 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,9 +1,9 @@
-black==20.8b1
+black==21.5b2
 flake8==3.8.*
 isort[requirements]==5.7.*
 mongomock==3.22.*
 moto==1.3.*
-mypy==0.790
+mypy==0.902
 pytest==6.2.*
 pytest-cov==2.11.*
 pytest-mock==3.5.*