diff --git a/tox.ini b/tox.ini
index f2e74786410..3c435b69a28 100644
--- a/tox.ini
+++ b/tox.ini
@@ -26,10 +26,6 @@ whitelist_externals = bash
 passenv = *_proxy *_PROXY
 
 [testenv:releasenotes]
-# NOTE(jaegerandi): 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 = sphinx-build -a -E -W -d releasenotes/build/doctrees -b html releasenotes/source releasenotes/build/html
 
 [testenv:functional]
@@ -59,10 +55,6 @@ commands = bash tools/lintstack.sh
 [testenv:cover]
 # Also do not run test_coverage_ext tests while gathering coverage as those
 # tests conflict with coverage.
-# NOTE(jaegerandi): 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 =
   python setup.py testr --coverage \
     --testr-args='^(?!.*test.*coverage).*$'
@@ -78,10 +70,6 @@ envdir = {toxworkdir}/pep8
 commands = {toxinidir}/tools/config/generate_sample.sh from_tox --nosamplefile
 
 [testenv:venv]
-# NOTE(jaegerandi): 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 = {posargs}
 
 [testenv:docs]