diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 87a648240..d52615bf4 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.8.1-6"
-export PIKA_PACKAGE_NAME="python-pyds9"
+export PIKA_PACKAGE_VERSION="0.11.3-1"
+export PIKA_PACKAGE_NAME="rust-lz4-flex"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"