diff --git a/src/lab/morph/references.html b/src/lab/morph/references.html
index c3d46f78..50f4df7b 100644
--- a/src/lab/morph/references.html
+++ b/src/lab/morph/references.html
@@ -14,6 +14,6 @@
 
 <p>Online Refrences: </p>
 
-<p>a. <a href="http://www.mathworks.com/help/toolbox/images/f18-12508.html">http://www.mathworks.com/help/toolbox/images/f18-12508.html</a></p>
+<p>a. <a href="https://in.mathworks.com/help/images/morphological-filtering.html">https://in.mathworks.com/help/images/morphological-filtering.html</a></p>
 
 <p>b. <a href="http://en.wikipedia.org/wiki/Mathematical_morphology">http://en.wikipedia.org/wiki/Mathematical_morphology</a></p>