diff --git a/Documentation/Cookbook/rst/recipes/improc.rst b/Documentation/Cookbook/rst/recipes/improc.rst
index 72f24b429994e2f58729ff50b2773bb58bdf25b1..0dde3676d984d522e4dda328da7c99912a9e01db 100644
--- a/Documentation/Cookbook/rst/recipes/improc.rst
+++ b/Documentation/Cookbook/rst/recipes/improc.rst
@@ -22,7 +22,7 @@ The naming convention “im[x]b[y]” designates the yth band of the xth
 input image.
 
 The *BandMath* application embeds built-in operators and functions
-listed in `muparser documentation <http://muparser.sourceforge.net/mup_features.html#idDef2>`_ thus
+listed in `muparser documentation <https://beltoforion.de/article.php?a=muparser&p=features&s=idDef1#idDef1>`_ thus
 allowing a vast choice of possible operations.
 
 Images with no-data values
diff --git a/Modules/Applications/AppMathParserX/app/otbBandMathX.cxx b/Modules/Applications/AppMathParserX/app/otbBandMathX.cxx
index fefa3f769f30f96a959a54cb072b2dc1e70a927f..4ea775fdb56ca5db88271e0918e90a39da46dcb8 100644
--- a/Modules/Applications/AppMathParserX/app/otbBandMathX.cxx
+++ b/Modules/Applications/AppMathParserX/app/otbBandMathX.cxx
@@ -197,7 +197,7 @@ private:
       "into a unique multiband output image."
     );
     SetDocAuthors( "OTB-Team" );
-    SetDocSeeAlso("[1] http://articles.beltoforion.de/article.php?a=muparserx\n\n"
+    SetDocSeeAlso("[1] https://beltoforion.de/article.php?a=muparserx\n\n"
       "[2] BandMath");
     AddDocTag(Tags::Manip);