diff --git a/tox.ini b/tox.ini
index a7ed4579..192464f2 100644
--- a/tox.ini
+++ b/tox.ini
@@ -48,8 +48,6 @@ commands =
   sh tools/pretty_tox.sh '{posargs}'
 
 [testenv:releasenotes]
-# TODO(ihrachys): remove once infra supports constraints for this target
-install_command = {toxinidir}/tools/tox_install.sh unconstrained {opts} {packages}
 commands = sphinx-build -a -E -W -d releasenotes/build/doctrees -b html releasenotes/source releasenotes/build/html
 
 [testenv:pep8]
@@ -59,14 +57,10 @@ commands =
   {[testenv:genconfig]commands}
 
 [testenv:cover]
-# TODO(ihrachys): remove once infra supports constraints for this target
-install_command = {toxinidir}/tools/tox_install.sh unconstrained {opts} {packages}
 commands =
   python setup.py test --coverage --coverage-package-name=neutron_dynamic_routing --testr-args='{posargs}'
 
 [testenv:venv]
-# TODO(ihrachys): remove once infra supports constraints for this target
-install_command = pip install -U {opts} {packages}
 commands = {posargs}
 
 [testenv:docs]