diff --git a/ChangeLog b/ChangeLog
index 1d8e8b8..32dd8a8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -13,6 +13,7 @@ Unreleased
 	  SERVEFILE_SECONDARY_PORT
 	* fixed broken redirect when filename contained umlauts or other characters
 	  that should have been quoted
+	* drop python3.5 support
 
 
 2020-10-30 v0.5.1
diff --git a/setup.py b/setup.py
index 362b78b..49b3b6e 100755
--- a/setup.py
+++ b/setup.py
@@ -38,10 +38,10 @@ setup(
         'Programming Language :: Python :: 2',
         'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
+        'Programming Language :: Python :: 3.9',
         'Topic :: Communications',
         'Topic :: Communications :: File Sharing',
         'Topic :: Internet',
diff --git a/tox.ini b/tox.ini
index 2d8e0ea..8be400a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py27,py36,py37,py38
+envlist = py27,py36,py37,py38,py39
 
 [testenv]
 deps =