diff --git a/.travis.yml b/.travis.yml
index b519b994..6c3a4780 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -31,6 +31,10 @@ matrix:
       env: TOXENV=py37
       sudo: required
       dist: xenial
+    - python: 3.8
+      env: TOXENV=py38
+      sudo: required
+      dist: xenial
     - python: pypy
       env: TOXENV=pypy
 notifications:
diff --git a/docs/main/changelog.rst b/docs/main/changelog.rst
index 123b5a5a..64aedfff 100644
--- a/docs/main/changelog.rst
+++ b/docs/main/changelog.rst
@@ -9,6 +9,9 @@ follows `Semantic versioning`_
 
 Development version
 -------------------
+- Add Python 3.8 support.
+- Add support of six 1.14.0.
+- Add support of six 1.13.0.
 - Regenerate C sources using Cython 0.29.14.
 - Fix PEP257 doc block errors in example modules.
 
diff --git a/requirements.txt b/requirements.txt
index b25b5e35..c71dc73e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1 @@
-six>=1.7.0,<=1.12.0
+six>=1.7.0,<=1.14.0
diff --git a/setup.py b/setup.py
index 47eb0b78..8ddafba7 100644
--- a/setup.py
+++ b/setup.py
@@ -84,6 +84,7 @@ setup(name='dependency-injector',
           'Programming Language :: Python :: 3.5',
           'Programming Language :: Python :: 3.6',
           'Programming Language :: Python :: 3.7',
+          'Programming Language :: Python :: 3.8',
           'Programming Language :: Python :: Implementation :: CPython',
           'Programming Language :: Python :: Implementation :: PyPy',
           'Topic :: Software Development',
diff --git a/tox.ini b/tox.ini
index 7908ae09..0dcf2c99 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 envlist=
-    coveralls, pylint, flake8, pydocstyle, py26, py27, py33, py34, py35, py36, pypy, pypy3
+    coveralls, pylint, flake8, pydocstyle, py26, py27, py33, py34, py35, py36, py37, py38, pypy, pypy3
 
 [testenv]
 deps=