diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 3f69a6876..0baf6baa0 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="24.08.0-2"
-export PIKA_PACKAGE_NAME="kitinerary"
+export PIKA_PACKAGE_VERSION="9.0.0+dfsg-1"
+export PIKA_PACKAGE_NAME="tcl9.0"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"