diff --git a/express/readme.md b/express/readme.md
index 47ba15d..5aa8db3 100644
--- a/express/readme.md
+++ b/express/readme.md
@@ -1,6 +1,6 @@
 More info here:
 
-http://www.40percent.club/2020/08/gherkin_express.html
+http://www.40percent.club/2020/08/gherkin-express.html
 
 [How to order PCBs from gerber files](http://www.40percent.club/2017/03/ordering-pcb.html)