diff --git a/requirements-dev.txt b/requirements-dev.txt
index 0a80e0ab..359ec629 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,11 +1,11 @@
-black==20.8b1
+black==21.5b2
 flake8==3.8.*
 isort[requirements]==5.7.*
 mongomock==3.22.*
 moto==1.3.*
 mypy==0.790
 pytest==6.2.*
-pytest-cov==2.11.*
+pytest-cov==2.12.*
 pytest-mock==3.5.*
 pytest-vcr==1.0.*
 coveralls==3.0.*