diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index a58ed90bf..9f6525c95 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="6.8.0-1"
-export PIKA_PACKAGE_NAME="kf6-kunitconversion"
+export PIKA_PACKAGE_VERSION="2.2.0+ds-4"
+export PIKA_PACKAGE_NAME="rust-signature"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"