diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index f7ccae2e6..0b875210d 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2.5.0-1"
-export PIKA_PACKAGE_NAME="ocaml-mdx"
+export PIKA_PACKAGE_VERSION="0.44.0-2"
+export PIKA_PACKAGE_NAME="phoc"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b3"