diff --git a/start b/start
index 492f1bc..4a600c5 100755
--- a/start
+++ b/start
@@ -1,6 +1,7 @@
 #!/usr/bin/env bash
-set -eux
+set -eu
 
-jupyter nbconvert --execute --inplace climaterisk/book/Startup.ipynb
+# Allow this specific command to fail
+jupyter nbconvert --execute --inplace climaterisk/book/Startup.ipynb || true
 
-exec "$@"
\ No newline at end of file
+exec "$@"