diff --git a/.gitignore b/.gitignore
index ef5bca6..2444b69 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,4 @@
 /.coverage
+*egg-info
+*.pyc
 /.tox/
diff --git a/.travis.yml b/.travis.yml
index 6cdc049..dd1b29e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,6 +12,10 @@ matrix:
       env: TOXENV=pypy3
     - python: 3.6
       env: TOXENV=py36
+    - python: 3.7
+      env: TOXENV=py37
+    - python: 3.8
+      env: TOXENV=py38
 
 install:
   - |
diff --git a/README.rst b/README.rst
index ab0b708..52cdd3e 100644
--- a/README.rst
+++ b/README.rst
@@ -20,7 +20,7 @@ Note: Queuelib isn't thread-safe.
 Requirements
 ============
 
-* Python 2.7 or Python 3.3
+* Python 2.7 or Python 3.5+
 * no external library requirements
 
 Installation
diff --git a/setup.py b/setup.py
index 8f5ef59..8db4235 100644
--- a/setup.py
+++ b/setup.py
@@ -19,8 +19,10 @@
         'Programming Language :: Python :: 2',
         'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.3',
-        'Programming Language :: Python :: 3.4',
+        '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',
     ]
diff --git a/tox.ini b/tox.ini
index 1d1cd89..1254727 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,7 +4,7 @@
 # and then run "tox" from this directory.
 
 [tox]
-envlist = py27, pypy, py35, py36, pypy3
+envlist = py27, pypy, py35, py36, py37, py38, pypy3
 
 [testenv]
 deps =