diff --git a/binder/requirements.txt b/binder/requirements.txt
index d6a5769..5b5d784 100644
--- a/binder/requirements.txt
+++ b/binder/requirements.txt
@@ -1,4 +1,4 @@
-pyaml
+accelerator-middle-layer
 pyaml-cs-oa[tango,epics]
 tango-pyaml
 pyaml-test-lattice
\ No newline at end of file