diff --git a/tox.ini b/tox.ini
index 2272c81fc4b..76982009373 100644
--- a/tox.ini
+++ b/tox.ini
@@ -196,6 +196,7 @@ commands = bindep test
 
 [testenv:lower-constraints]
 basepython = python3
+setenv = OS_TEST_TIMEOUT={env:OS_TEST_TIMEOUT:60}
 deps =
   -c{toxinidir}/lower-constraints.txt
   -r{toxinidir}/test-requirements.txt