diff --git a/tox.ini b/tox.ini
index 19b3e6b4..4098b752 100644
--- a/tox.ini
+++ b/tox.ini
@@ -33,6 +33,7 @@ deps = nodeenv
 commands =
   bash ./bin/nodeenv.sh {envdir} 6.10.2
   npm install
+  npm rebuild node-sass --force
   {toxinidir}/node_modules/.bin/grunt {posargs}
 
 [testenv:bindep]