diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 2f81d4423..50c51a287 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="6.2.1+~cs7.0.8-1"
-export PIKA_PACKAGE_NAME="node-tar"
+export PIKA_PACKAGE_VERSION="1.7.2-1"
+export PIKA_PACKAGE_NAME="why3"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"