--- a/uvtool/tests/test_simplestreams.py
+++ b/uvtool/tests/test_simplestreams.py
@@ -19,16 +19,6 @@
 
 import uvtool.libvirt.simplestreams as simplestreams
 
-# Some tests use more recent features of mock that are not available with mock
-# 0.7.2-1 as shipped with Ubuntu Precise, but for the next six months, we still
-# want backports to be possible. Skip tests on builds that don't have a recent
-# enough version of mock available. Ideally, this would be a test directly for
-# the version of mock required, but I cannot find an implementation of
-# NormalizedVersion as described in PEP-0386. As this is a temporary hack
-# anyway, this will do for now, since we know that the mock version on Ubuntu
-# Precise will never change.
-ON_PRECISE = unittest.mock.__version__ == '0.7.2'
-
 FAKE_VOLUME_PRODUCT_NAME = 'com.ubuntu.cloud:server:12.04:amd64'
 FAKE_VOLUME_VERSION_0 = '20131119'
 FAKE_VOLUME_VERSION_1 = '20131120'
@@ -37,7 +27,6 @@
 ENCODED_FAKE_VOLUME_PRODUCT_NAME_1 = simplestreams._encode_libvirt_pool_name(
     FAKE_VOLUME_PRODUCT_NAME, FAKE_VOLUME_VERSION_1)
 
-@unittest.skipIf(ON_PRECISE, 'mock version is too old')
 @unittest.mock.patch('uvtool.libvirt.simplestreams.uvtool.libvirt')
 @unittest.mock.patch('uvtool.libvirt.simplestreams.pool_metadata', new={})
 @unittest.mock.patch('uvtool.libvirt.simplestreams.libvirt')
