diff --git a/tox.ini b/tox.ini
index 4a353e12ce15..0de6f3b834fb 100644
--- a/tox.ini
+++ b/tox.ini
@@ -72,10 +72,6 @@ commands = oslopolicy-sample-generator --config-file=etc/nova/nova-policy-genera
 [testenv:cover]
 # Also do not run test_coverage_ext tests while gathering coverage as those
 # tests conflict with coverage.
-# NOTE(sdague): this target does not use constraints because
-# upstream infra does not yet support it. Once that's fixed, we can
-# drop the install_command.
-install_command = pip install -U --force-reinstall {opts} {packages}
 commands =
 coverage erase
 python setup.py testr --coverage \
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