diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index cace7b52e..e11d84040 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.3.1-1"
-export PIKA_PACKAGE_NAME="uid-wrapper"
+export PIKA_PACKAGE_VERSION="2.1.0-2"
+export PIKA_PACKAGE_NAME="ocaml-mtime"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"