diff --git a/hosts/heather/jupyter.nix b/hosts/heather/jupyter.nix
index 4171ea1..46938d4 100644
--- a/hosts/heather/jupyter.nix
+++ b/hosts/heather/jupyter.nix
@@ -40,7 +40,7 @@ in {
           --no-browser \
           --ip=127.0.0.1 \
           --port=8890 \
-          --ServerApp.password="$JUPYTER_PASSWORD_HASH" \
+          --PasswordIdentityProvider.hashed_password="''${JUPYTER_PASSWORD_HASH}" \
           --IdentityProvider.token="" \
           --ServerApp.allow_remote_access=True \
           --ServerApp.root_dir=/srv/jupyter