diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 416830e07..7aa14dd04 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.009-6"
-export PIKA_PACKAGE_NAME="liblog-dispatch-message-passing-perl"
+export PIKA_PACKAGE_VERSION="0.4.2~git20190115.97f14313-6"
+export PIKA_PACKAGE_NAME="python-pyxs"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"