diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 0f0f3c722..a070a9a8c 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="20250303-1"
-export PIKA_PACKAGE_NAME="gnulib"
+export PIKA_PACKAGE_VERSION="1.6-1.4"
+export PIKA_PACKAGE_NAME="ario"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"