diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index effaba763..99f0085ea 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="4.3+20240723-2"
-export PIKA_PACKAGE_NAME="mdadm"
+export PIKA_PACKAGE_VERSION="3.20+dfsg-9"
+export PIKA_PACKAGE_NAME="muse-el"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"