diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index fa764fe9c..649e2f62c 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="6.6.0-1"
-export PIKA_PACKAGE_NAME="kf6-karchive"
+export PIKA_PACKAGE_VERSION="0.42~rc1-1"
+export PIKA_PACKAGE_NAME="phoc"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"