diff --git a/src/ch05/io_monad_tests/io_monad_test.html b/src/ch05/io_monad_tests/io_monad_test.html
index 9cc6b10..7727274 100644
--- a/src/ch05/io_monad_tests/io_monad_test.html
+++ b/src/ch05/io_monad_tests/io_monad_test.html
@@ -14,7 +14,7 @@
   -->
   <div id="student-name">alonzo church</div>
 
-  <script src="https://cdn.rawgit.com/lodash/lodash/4.5.1/dist/lodash.min.js"></script>
+  <script src="https://cdn.jsdelivr.net/gh/lodash/lodash@4.5.1/dist/lodash.min.js"></script>
   <script src="io_monad_test.js"></script>
 </body>
 </html>