installation-instructions.md

@@ -51,7 +51,7 @@ and then start the notebook server
 
 ## Modifying the docker image
 If you are interested in modifying or extending the image, you can download the
-[Dockerfile](/uploads/9344ed078248f1b0eaacac850eff1069/Dockerfile).
+[Dockerfile](uploads/8ba04a8133c49ca67d0ea8c5ca96bcd7/Dockerfile).
 
 # Native installation