diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index af6505c9d..8ee9a5f39 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.10.1-1.1"
-export PIKA_PACKAGE_NAME="exult"
+export PIKA_PACKAGE_VERSION="46-0.1"
+export PIKA_PACKAGE_NAME="unicode-cldr-core"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"