diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index f3dfcc7c0..2c48aaeb9 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.9.6.0"
-export PIKA_PACKAGE_NAME="upgrade-system"
+export PIKA_PACKAGE_VERSION="5.20241020-1"
+export PIKA_PACKAGE_NAME="libmodule-corelist-perl"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"