diff --git a/lms/templates/widgets/optimizely.html b/lms/templates/widgets/optimizely.html
index 28986cf32a..614600b2a5 100644
--- a/lms/templates/widgets/optimizely.html
+++ b/lms/templates/widgets/optimizely.html
@@ -1,5 +1,5 @@
 <%page expression_filter="h"/>
 
 % if settings.OPTIMIZELY_PROJECT_ID and not disable_optimizely and not is_from_mobile_app:
-<script src=${ '//cdn.optimizely.com/js/{}.js'.format(settings.OPTIMIZELY_PROJECT_ID) }></script>
+<script src=${ 'https://www.edx.org/optimizelyjs/{}.js'.format(settings.OPTIMIZELY_PROJECT_ID) }></script>
 % endif