diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 594071071..1ba0a1c82 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.1.17-3"
-export PIKA_PACKAGE_NAME="libclass-date-perl"
+export PIKA_PACKAGE_VERSION="1.9.0-5"
+export PIKA_PACKAGE_NAME="faiss"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"