diff --git a/report-requirements.txt b/report-requirements.txt
index 2d450a513..a88c3ebab 100644
--- a/report-requirements.txt
+++ b/report-requirements.txt
@@ -1,4 +1,4 @@
 # Requirements file for 'report' Tox environment
 
-os-testr>=1.0   # Apache 2.0
+os-testr>=1.0   # Apache-2.0
 stestr>=2.0     # Apache-2.0
diff --git a/tox.ini b/tox.ini
index fe92a5eea..191920461 100644
--- a/tox.ini
+++ b/tox.ini
@@ -198,8 +198,11 @@ commands =
 # --- CI report environments --------------------------------------------------
 
 [testenv:report]
-basepython=python2.7
+skipsdist=True
+usedevelop = False
 deps = -r {toxinidir}/report-requirements.txt
 passenv = {[base]passenv}
 setenv = {[base]setenv}
-commands = {toxinidir}/tools/ci/make_report
+commands =
+    pip install git+https://github.com/testing-cabal/subunit.git@master
+    {toxinidir}/tools/ci/make_report