diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 846c56bf3..fd5a8cf57 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="6.21.1-1"
-export PIKA_PACKAGE_NAME="nordugrid-arc"
+export PIKA_PACKAGE_VERSION="8.1.3-2"
+export PIKA_PACKAGE_NAME="sphinx"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"