diff --git a/requirements.txt b/requirements.txt
index 2e446c5f..82a17eec 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 -e git://github.com/rwb27/openflexure_nano_motor_controller.git#egg=openflexure_stage
--e git://github.com/rwb27/picamera.git#egg=picamera
+-e git://github.com/rwb27/picamera.git@lens-shading#egg=picamera
 
 flask >= 0.12.3
 pyyaml==3.13