diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index e74cb7657..348291f2b 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="4:24.08.2-1"
-export PIKA_PACKAGE_NAME="mailcommon"
+export PIKA_PACKAGE_VERSION="0.9.81+ds1-2"
+export PIKA_PACKAGE_NAME="xraylarch"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"