diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 79b17b4b5..e9af513ed 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1:20241115-1"
-export PIKA_PACKAGE_NAME="chirp"
+export PIKA_PACKAGE_VERSION="6.4.13-3"
+export PIKA_PACKAGE_NAME="jupyter-notebook"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"