diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 0b068e558..75f7ceca0 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="3.2.0-3"
-export PIKA_PACKAGE_NAME="python-openstackdocstheme"
+export PIKA_PACKAGE_VERSION="4.5.0.20241231-1"
+export PIKA_PACKAGE_NAME="newlib"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"