diff --git a/docs/releases.rst b/docs/releases.rst
index 1e7c4ddc..74afb455 100644
--- a/docs/releases.rst
+++ b/docs/releases.rst
@@ -4,6 +4,7 @@ Release notes
 .. toctree::
    :maxdepth: 2
 
+   releases/v5.0.1
    releases/v5.0.0
    releases/v4.5.3
    releases/v4.5.2
diff --git a/docs/releases/v5.0.1.rst b/docs/releases/v5.0.1.rst
new file mode 100644
index 00000000..d3a006c0
--- /dev/null
+++ b/docs/releases/v5.0.1.rst
@@ -0,0 +1,12 @@
+What's new in Tornado 5.0.1
+===========================
+
+Mar 18, 2018
+------------
+
+Bug fix
+~~~~~~~
+
+- This release restores support for versions of Python 3.4 prior to
+  3.4.4. This is important for compatibility with Debian Jessie which
+  has 3.4.2 as its version of Python 3.
diff --git a/setup.py b/setup.py
index b9a0b71d..239d47c5 100644
--- a/setup.py
+++ b/setup.py
@@ -103,7 +103,7 @@ http://api.mongodb.org/python/current/installation.html#osx
 
 kwargs = {}
 
-version = "5.0"
+version = "5.0.1"
 
 with open('README.rst') as f:
     kwargs['long_description'] = f.read()
diff --git a/tornado/__init__.py b/tornado/__init__.py
index 73e99155..d577e8f2 100644
--- a/tornado/__init__.py
+++ b/tornado/__init__.py
@@ -24,5 +24,5 @@ from __future__ import absolute_import, division, print_function
 # is zero for an official release, positive for a development branch,
 # or negative for a release candidate or beta (after the base version
 # number has been incremented)
-version = "5.0"
-version_info = (5, 0, 0, 0)
+version = "5.0.1"
+version_info = (5, 0, 1, 0)