diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 5f8491b2f..cbbaec200 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.9.1+dfsg-1"
-export PIKA_PACKAGE_NAME="r-cran-jsonlite"
+export PIKA_PACKAGE_VERSION="257.4+1"
+export PIKA_PACKAGE_NAME="systemd-boot-efi-amd64-signed"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"