diff --git a/binder/postBuild b/binder/postBuild
index 6c502ccaf..9dbfce15d 100755
--- a/binder/postBuild
+++ b/binder/postBuild
@@ -7,6 +7,6 @@ pip install git+https://github.com/blink1073/mtools@pymongo-4
 
 pip install -e .
 
-yes | m $(cat VERSION)
+yes | m $(cat binder/VERSION)
 
 m
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