diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 5ac0866d3..cc8283a3e 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.3.1-1"
-export PIKA_PACKAGE_NAME="python-open-meteo"
+export PIKA_PACKAGE_VERSION="15.1.0-2"
+export PIKA_PACKAGE_NAME="ocaml-uucd"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"