diff --git a/.travis.yml b/.travis.yml
index 73c4bad..8abba4f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -18,6 +18,8 @@ matrix:
     python: 3.7
   - env: TOX_ENV=py38
     python: 3.8
+  - env: TOX_ENV=py39
+    python: 3.9
 #  - env: TOX_ENV=pypy
 #    python: pypy
 install: pip install -r requirements/testing.txt -r requirements/release.txt
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index e04127c..eb329fc 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -15,6 +15,12 @@ are used for versioning (schema follows below):
   0.3.4 to 0.4).
 - All backwards incompatible changes are mentioned in this document.
 
+0.12.4
+------
+2021-01-02
+
+- Tested against Python 3.9.
+
 0.12.3
 ------
 2020-11-26
diff --git a/README.rst b/README.rst
index 9489d4d..1392c65 100644
--- a/README.rst
+++ b/README.rst
@@ -29,7 +29,7 @@ Optionally raises exceptions on non-existing TLDs or silently fails (if
 
 Prerequisites
 =============
-- Python 3.6, 3.7 and 3.8
+- Python 3.6, 3.7, 3.8 and 3.9.
 
 `Support for Python 2.7 and 3.5`_ is available as well.
 
diff --git a/docs/changelog.rst b/docs/changelog.rst
index e04127c..eb329fc 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -15,6 +15,12 @@ are used for versioning (schema follows below):
   0.3.4 to 0.4).
 - All backwards incompatible changes are mentioned in this document.
 
+0.12.4
+------
+2021-01-02
+
+- Tested against Python 3.9.
+
 0.12.3
 ------
 2020-11-26
diff --git a/docs/index.rst b/docs/index.rst
index 5521bd5..ba6caea 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -29,7 +29,7 @@ Optionally raises exceptions on non-existing TLDs or silently fails (if
 
 Prerequisites
 =============
-- Python 3.6, 3.7 and 3.8
+- Python 3.6, 3.7, 3.8 and 3.9.
 
 `Support for Python 2.7 and 3.5`_ is available as well.
 
diff --git a/setup.py b/setup.py
index a7aabd0..bc447b6 100644
--- a/setup.py
+++ b/setup.py
@@ -7,7 +7,7 @@
 except:
     readme = ''
 
-version = '0.12.3'
+version = '0.12.4'
 
 py_where = './src'
 py_package_dir = 'src'
@@ -44,6 +44,7 @@
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
         "Environment :: Web Environment",
         "Intended Audience :: Developers",
         "Operating System :: OS Independent",
diff --git a/src/tld/__init__.py b/src/tld/__init__.py
index 689b7f3..a1bdf61 100644
--- a/src/tld/__init__.py
+++ b/src/tld/__init__.py
@@ -9,7 +9,7 @@
 )
 
 __title__ = 'tld'
-__version__ = '0.12.3'
+__version__ = '0.12.4'
 __author__ = 'Artur Barseghyan'
 __copyright__ = '2013-2020 Artur Barseghyan'
 __license__ = 'MPL-1.1 OR GPL-2.0-only OR LGPL-2.1-or-later'
diff --git a/tox.ini b/tox.ini
index 1aab92a..db943b5 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 envlist =
-    py{27,35,36,37,38}
+    py{27,35,36,37,38,39}
 
 [testenv]
 passenv = *