diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index b08d2b2ab..87ac7fbc6 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.3-5"
-export PIKA_PACKAGE_NAME="libelfin"
+export PIKA_PACKAGE_VERSION="1.18.0+dfsg-4"
+export PIKA_PACKAGE_NAME="sumo"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"