diff --git a/.travis.yml b/.travis.yml
index 5edd518..00c7866 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,7 @@ python:
   - "3.6"
   - "3.7"
   - "3.8"
+  - "3.9-dev"
 services:
   - postgresql
 before_install:
diff --git a/CHANGES.rst b/CHANGES.rst
index 372444c..439cb6f 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -9,6 +9,8 @@ Changes
   parameters afterwards.
   (`#40 <https://github.com/zopefoundation/zope.sqlalchemy/pull/40>`_)
 
+* Add preliminary support for Python 3.9a3.
+
 
 1.2 (2019-10-17)
 ----------------
diff --git a/setup.py b/setup.py
index 1764b07..e5115a3 100644
--- a/setup.py
+++ b/setup.py
@@ -39,6 +39,7 @@
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: Implementation :: CPython",
         "Topic :: Database",
         "Topic :: Software Development :: Libraries :: Python Modules",
diff --git a/tox.ini b/tox.ini
index 06f377f..e1206c0 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,6 +5,7 @@ envlist =
     py36,
     py37,
     py38,
+    py39,
 # pypy fails because of some weird test error that might be an issue with
 # sqlalchemy, pypy, and issues with object identity.