diff --git a/tox.ini b/tox.ini
index bca97c0..2fc8592 100644
--- a/tox.ini
+++ b/tox.ini
@@ -41,22 +41,12 @@ extensions = .rst
 
 
 [testenv:releasenotes]
-# 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 =
     sphinx-build -a -E -W -d releasenotes/build/doctrees -b html releasenotes/source releasenotes/build/html
 
 
 # environment used by the -infra templated docs job
 [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}