diff --git a/legal/LICENSE b/legal/LICENSE
index e73db2bb31..420e9f3507 100644
--- a/legal/LICENSE
+++ b/legal/LICENSE
@@ -224,7 +224,7 @@ Office Open XML schemas (poi-ooxml-full-*.jar)
 
     [1] https://www.ecma-international.org/publications/standards/Ecma-376.htm
     [2] https://www.ecma-international.org/memento/Ecmabylaws.htm
-    [3] http://www.microsoft.com/openspecifications/en/us/programs/osp/default.aspx
+    [3] https://www.microsoft.com/openspecifications/en/us/programs/osp/default.aspx
     [4] https://www.ecma-international.org/publications/files/ECMA-ST/Ecma%20PATENT/
         Patent%20statements%20ok/ECMA-376%20Edition%202%20Microsoft%20Patent%20Declaration.pdf
     [5] https://www.ecma-international.org/publications/files/ECMA-ST/Ecma%20PATENT/