diff --git a/docs/lessons/seismograph/challenge.md b/docs/lessons/seismograph/challenge.md
index f26c7c50..d3f3377b 100644
--- a/docs/lessons/seismograph/challenge.md
+++ b/docs/lessons/seismograph/challenge.md
@@ -5,7 +5,7 @@ Coding challenges for the seismograph.
 
 ### ~avatar avatar
 
-Engineering: In this project, you will build your own seismograph micro:bit from tape and a household plate. 
+Engineering: In this project, you will build a remote control based on the seismograph micro:bit activity using a second micro:bit and micro USB cable. 
 
 ### ~