diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 8a8077900..3930add68 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="3.0.29-1"
-export PIKA_PACKAGE_NAME="ptpython"
+export PIKA_PACKAGE_VERSION="2.5.0-1"
+export PIKA_PACKAGE_NAME="rust-walkdir"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"