diff --git a/Pipfile b/Pipfile
index 7863cdde..3bcfd773 100644
--- a/Pipfile
+++ b/Pipfile
@@ -21,10 +21,10 @@ docutils = "*"
 tox = "*"
 detox = "*"
 httpbin = "==0.5.0"
-pytest-mypy = "*"
+pytest-mypy = {git = "https://github.com/petr-muller/pytest-mypy", editable = true, ref = "flush-errors"}
 white = {version="*"}
 "e1839a8" = {path = ".", editable = true, extras=["socks"]}
-mypy = "==0.540"
+mypy = "*"
 "rfc3986" = "*"
 
 
diff --git a/setup.py b/setup.py
index daf27ab9..895f1406 100755
--- a/setup.py
+++ b/setup.py
@@ -84,7 +84,7 @@ test_requirements = [
     'PySocks>=1.5.6, !=1.5.7',
     'pytest>=2.8.0',
     'pytest-mypy',
-    'mypy==0.540',
+    'mypy',
     'white',
 ]
 about = {}