diff --git a/tox.ini b/tox.ini
index 46c376e..78d6d5a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -80,9 +80,3 @@ allowlist_externals = rm
 commands =
   rm -rf releasenotes/build
   sphinx-build -a -E -W -d releasenotes/build/doctrees -b html releasenotes/source releasenotes/build/html
-
-[testenv:lower-constraints]
-deps =
-  -c{toxinidir}/lower-constraints.txt
-  -r{toxinidir}/test-requirements.txt
-  -r{toxinidir}/requirements.txt