diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index b09d7603c..b44f9ae8d 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2.003000-2"
-export PIKA_PACKAGE_NAME="libxml-libxslt-perl"
+export PIKA_PACKAGE_VERSION="6.0.1-1"
+export PIKA_PACKAGE_NAME="rpyc"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"