diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 5dcbc1e57..ac5640f96 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="3.2.2+dfsg-1"
-export PIKA_PACKAGE_NAME="wapiti"
+export PIKA_PACKAGE_VERSION="2.5.1-1"
+export PIKA_PACKAGE_NAME="json-smart"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"