diff -r 7bd0a250183b -r 5c781dcd5864 src/Tools/VSCode/extension/README.md
--- a/src/Tools/VSCode/extension/README.md	Fri Mar 02 11:52:27 2018 +0100
+++ b/src/Tools/VSCode/extension/README.md	Fri Mar 02 15:16:10 2018 +0100
@@ -8,7 +8,7 @@
 
 See also:
 
-  * <http://isabelle.in.tum.de/repos/isabelle/file/tip/src/Tools/VSCode>
+  * <https://isabelle.in.tum.de/repos/isabelle/file/tip/src/Tools/VSCode>
   * <https://github.com/Microsoft/language-server-protocol>