diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 0fac582f1..ec785b484 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.0.5-4"
-export PIKA_PACKAGE_NAME="artha"
+export PIKA_PACKAGE_VERSION="3.81-1"
+export PIKA_PACKAGE_NAME="liblocale-codes-perl"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"