diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 75f7ceca0..5d8436fc8 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="4.5.0.20241231-1"
-export PIKA_PACKAGE_NAME="newlib"
+export PIKA_PACKAGE_VERSION="8.0-2.1"
+export PIKA_PACKAGE_NAME="rsbackup"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"