diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index f1529f377..e4518de87 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="23.01.0-2"
-export PIKA_PACKAGE_NAME="spacebar"
+export PIKA_PACKAGE_VERSION="5.14+dfsg-2"
+export PIKA_PACKAGE_NAME="libjson-validator-perl"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"