diff --git a/tox.ini b/tox.ini
index a9c410842f..e1acfef888 100644
--- a/tox.ini
+++ b/tox.ini
@@ -138,6 +138,12 @@ filename=*.py,trove-*
 commands = openstack-doc-test --check-links {posargs}
 
 [testenv:checkbuild]
+# NOTE(pmalik) The setting of the install_command in this location
+# is only required because currently infra does not actually
+# support constraints files for the publishdocs job, and while
+# the environment variable UPPER_CONSTRAINTS_FILE is set, there's
+# no file there. It can be removed when infra changes this.
+install_command = pip install -U {opts} {packages}
 commands =
   openstack-doc-test --check-niceness --check-syntax --check-deletions {posargs}
   openstack-doc-test --check-build {posargs}