diff --git a/tox.ini b/tox.ini
index f38febe005..0dc13d979f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -16,11 +16,9 @@ setenv = VIRTUAL_ENV={envdir}
          LANGUAGE=en_US
          LC_ALL=en_US.utf-8
 deps = -r{toxinidir}/test-requirements.txt
-# NOTE(mriedem): If py35 fails with "db type could not be determined", delete
-# .testrepository and try again. Running py35 before py27 is OK, but not the
-# other way around. See: https://bugs.launchpad.net/testrepository/+bug/1212909
 commands =
   find . -type f -name "*.pyc" -delete
+  rm -Rf .testrepository/times.dbm
 passenv = http_proxy HTTP_PROXY https_proxy HTTPS_PROXY no_proxy NO_PROXY OS_DEBUG GENERATE_HASHES
 # there is also secret magic in pretty_tox.sh which lets you run in a fail only
 # mode. To do this define the TRACE_FAILONLY environmental variable.