diff --git a/CHANGES.rst b/CHANGES.rst
index 1ecbec243..28c1f4cd7 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -22,8 +22,10 @@ want to know what's different in 5.0 since 4.5.x, see :ref:`whatsnew5x`.
     ..  ----------------------------
 
 
-Unreleased
-----------
+.. _changes_521:
+
+Version 5.2.1 --- 2020-07-23
+----------------------------
 
 - The dark mode HTML report still used light colors for the context listing,
   making them unreadable (`issue 1009`_).  This is now fixed.
diff --git a/appveyor.yml b/appveyor.yml
index 616635a88..6baccd81f 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -47,13 +47,13 @@ environment:
     - JOB: "3.8 64-bit"
       TOXENV: "py38"
       PYTHON: "C:\\Python38-x64"
-      PYTHON_VERSION: "3.8.3"
+      PYTHON_VERSION: "3.8.5"
       PYTHON_ARCH: "64"
 
     - JOB: "3.9 64-bit"
       TOXENV: "py39"
       PYTHON: "C:\\Python39-x64"
-      PYTHON_VERSION: "3.9.0b4"
+      PYTHON_VERSION: "3.9.0b5"
       PYTHON_ARCH: "64"
 
     # 32-bit jobs don't run the tests under the Python tracer, since that should
@@ -89,14 +89,14 @@ environment:
     - JOB: "3.8 32-bit"
       TOXENV: "py38"
       PYTHON: "C:\\Python38"
-      PYTHON_VERSION: "3.8.3"
+      PYTHON_VERSION: "3.8.5"
       PYTHON_ARCH: "32"
       COVERAGE_NO_PYTRACER: "1"
 
     - JOB: "3.9 32-bit"
       TOXENV: "py39"
       PYTHON: "C:\\Python39"
-      PYTHON_VERSION: "3.9.0b4"
+      PYTHON_VERSION: "3.9.0b5"
       PYTHON_ARCH: "32"
       COVERAGE_NO_PYTRACER: "1"
 
diff --git a/coverage/version.py b/coverage/version.py
index 36a68b560..93f843ec5 100644
--- a/coverage/version.py
+++ b/coverage/version.py
@@ -5,7 +5,7 @@
 # This file is exec'ed in setup.py, don't import anything!
 
 # Same semantics as sys.version_info.
-version_info = (5, 2, 1, "alpha", 0)
+version_info = (5, 2, 1, "final", 0)
 
 
 def _make_version(major, minor, micro, releaselevel, serial):
diff --git a/doc/conf.py b/doc/conf.py
index c0184cf86..5bd101c37 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -66,11 +66,11 @@
 # built documents.
 #
 # The short X.Y version.
-version = '5.2'                                 # CHANGEME
+version = "5.2.1"                               # CHANGEME
 # The full version, including alpha/beta/rc tags.
-release = '5.2'                                 # CHANGEME
+release = "5.2.1"                               # CHANGEME
 # The date of release, in "monthname day, year" format.
-release_date = 'July 5, 2020'                   # CHANGEME
+release_date = "July 23, 2020"                  # CHANGEME
 
 rst_epilog = """
 .. |release_date| replace:: {release_date}
diff --git a/doc/index.rst b/doc/index.rst
index e70b1eeb5..e5df9263b 100644
--- a/doc/index.rst
+++ b/doc/index.rst
@@ -23,7 +23,7 @@ supported on:
 .. ifconfig:: prerelease
 
     **This is a pre-release build.  The usual warnings about possible bugs
-    apply.** The latest stable version is coverage.py 5.2, `described here`_.
+    apply.** The latest stable version is coverage.py 5.2.1, `described here`_.
 
 .. _described here: http://coverage.readthedocs.io/