diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index c9cadf519..9f3711a0a 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="6.2.91-1"
-export PIKA_PACKAGE_NAME="plymouth-kcm"
+export PIKA_PACKAGE_VERSION="5.2.0+dfsg-3"
+export PIKA_PACKAGE_NAME="oscar4"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"