diff --git a/.version b/.version
index b1f91a4..95d83a4 100644
--- a/.version
+++ b/.version
@@ -1 +1 @@
-0.540
+0.550
diff --git a/setup.py b/setup.py
index f2cdf39..89dbb41 100644
--- a/setup.py
+++ b/setup.py
@@ -4,5 +4,5 @@ from setuptools import setup
 setup(
     name='pre_commit_dummy_package',
     version='0.0.0',
-    install_requires=['mypy==0.540'],
+    install_requires=['mypy==0.550'],
 )