diff --git a/tests/playgrounds/advanced_playground.html b/tests/playgrounds/advanced_playground.html
index c06c2a9e9..d7271636c 100644
--- a/tests/playgrounds/advanced_playground.html
+++ b/tests/playgrounds/advanced_playground.html
@@ -68,8 +68,7 @@
 <script src="../themes/test_themes.js"></script>
 <script src="./screenshot.js"></script>
 <script src="./test_blocks_toolbox.js"></script>
-<script src="../../../blockly-samples2/plugins/dev-tools/dist/index.js"></script>
-<!-- <script src="https://unpkg.com/@blockly/dev-tools/dist/index.js"></script> -->
+<script src="https://unpkg.com/@blockly/dev-tools/dist/index.js"></script>
 <script src="https://unpkg.com/@blockly/theme-modern/dist/index.js"></script>
 
 <script>