diff --git a/docs/requirements.txt b/docs/requirements.txt
index 0ed11c4dc..773b92cea 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,4 +1,3 @@
--r ../requirements-py3.txt
 Sphinx>=2.1
 sphinx-hoverxref
 sphinx-notfound-page
diff --git a/requirements-py3.txt b/requirements-py3.txt
deleted file mode 100644
index 28c649e28..000000000
--- a/requirements-py3.txt
+++ /dev/null
@@ -1,16 +0,0 @@
-parsel>=1.5.0
-PyDispatcher>=2.0.5
-Twisted>=17.9.0
-w3lib>=1.17.0
-
-pyOpenSSL>=16.2.0  # Earlier versions fail with "AttributeError: module 'lib' has no attribute 'SSL_ST_INIT'"
-queuelib>=1.4.2    # Earlier versions fail with "AttributeError: '...QueueTest' object has no attribute 'qpath'"
-cryptography>=2.0  # Earlier versions would fail to install
-
-# Reference versions taken from
-# https://packages.ubuntu.com/xenial/python/
-# https://packages.ubuntu.com/xenial/zope/
-cssselect>=0.9.1
-lxml>=3.5.0
-service_identity>=16.0.0
-zope.interface>=4.1.3
diff --git a/tox.ini b/tox.ini
index fd75d18e2..f37c381d0 100644
--- a/tox.ini
+++ b/tox.ini
@@ -9,7 +9,6 @@ envlist = py35
 [testenv]
 deps =
     -ctests/constraints.txt
-    -rrequirements-py3.txt
     -rtests/requirements-py3.txt
     # Extras
     botocore>=1.3.23