diff --git a/requirements-tests-py3.txt b/requirements-tests-py3.txt
index 7364fc6bc..ce6214b79 100644
--- a/requirements-tests-py3.txt
+++ b/requirements-tests-py3.txt
@@ -7,7 +7,7 @@ flake8==3.8.4
 flake8-bugbear==20.1.4
 flake8-pyi==20.10.0
 isort==5.5.3
-pytype>=2021.4.1
+pytype>=2021.5.6
 
 # workaround for https://github.com/google/pytype/issues/909
 attrs==20.3.0