diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 2591e03af..49e4de95f 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="3.1.5-1"
-export PIKA_PACKAGE_NAME="python-jsonrpc-websocket"
+export PIKA_PACKAGE_VERSION="2.0.0+svn315-8"
+export PIKA_PACKAGE_NAME="splix"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"