diff --git a/.travis.yml b/.travis.yml
index f503be34..be8e089c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,9 +1,7 @@
 language: python
 python:
-  - "3.4"
-  - "3.5"
-  - "3.6"
-  - "3.7-dev"
+  - "3.7"
+  - "3.8-dev"
 install:
   - "pip install ."
 script: testall.py
diff --git a/INSTALL b/INSTALL
index 9b14b232..146031f4 100644
--- a/INSTALL
+++ b/INSTALL
@@ -1,5 +1,5 @@
 Pre-requisites:
-- Python 3.5+
+- Python 3.7+
 - Cython 0.22 and libidn, optionally (making JID faster by compiling the stringprep module)
 - GnuPG, for testing
 
diff --git a/README.rst b/README.rst
index d27f0698..6a25248d 100644
--- a/README.rst
+++ b/README.rst
@@ -1,7 +1,7 @@
 Slixmpp
 #########
 
-Slixmpp is an MIT licensed XMPP library for Python 3.5+. It is a fork of
+Slixmpp is an MIT licensed XMPP library for Python 3.7+. It is a fork of
 SleekXMPP.
 
 Slixmpp's goals is to only rewrite the core of the library (the low level
diff --git a/docs/differences.rst b/docs/differences.rst
index 8a86427b..7c781571 100644
--- a/docs/differences.rst
+++ b/docs/differences.rst
@@ -3,8 +3,9 @@
 Differences from SleekXMPP
 ==========================
 
-**Python 3.5+ only**
-    slixmpp will only work on python 3.5 and above.
+**Python 3.7+ only**
+    slixmpp will work on python 3.7 and above. It may work with previous
+    versions but we provide no guarantees.
 
 **Stanza copies**
     The same stanza object is given through all the handlers; a handler that
diff --git a/docs/index.rst b/docs/index.rst
index 2f556d83..a18c77a7 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -21,7 +21,7 @@ Slixmpp
     which goal is to use asyncio instead of threads to handle networking. See
     :ref:`differences`.
 
-Slixmpp is an :ref:`MIT licensed <license>` XMPP library for Python 3.5+,
+Slixmpp is an :ref:`MIT licensed <license>` XMPP library for Python 3.7+,
 
 Slixmpp's design goals and philosphy are:
 
diff --git a/setup.py b/setup.py
index 8cab570e..5b122388 100755
--- a/setup.py
+++ b/setup.py
@@ -28,9 +28,8 @@ CLASSIFIERS = [
     'Intended Audience :: Developers',
     'License :: OSI Approved :: MIT License',
     'Programming Language :: Python',
-    'Programming Language :: Python :: 3.5',
-    'Programming Language :: Python :: 3.6',
     'Programming Language :: Python :: 3.7',
+    'Programming Language :: Python :: 3.8',
     'Topic :: Internet :: XMPP',
     'Topic :: Software Development :: Libraries :: Python Modules',
 ]