diff --git a/install b/install
index 0da75b4b..fada9b66 100755
--- a/install
+++ b/install
@@ -68,6 +68,8 @@ git clone https://github.com/alanbjohnston/pi-power-button.git
 
 cd pi-power-button
 
+git checkout bullseye
+
 ./script/install