diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 52b1e1aa4..cc09a5cad 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="7.8.git20221117.28daf24+dfsg-8"
-export PIKA_PACKAGE_NAME="heimdal"
+export PIKA_PACKAGE_VERSION="6.5.0-1"
+export PIKA_PACKAGE_NAME="kf6-kio"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"