diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 71e7b3847..9ceefc2f0 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.13+git20240311+0a43bb8d89e3-3"
-export PIKA_PACKAGE_NAME="kyua"
+export PIKA_PACKAGE_VERSION="2.5.5-6"
+export PIKA_PACKAGE_NAME="mapcode"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"