diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 865fa61b4..c2d1535f3 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.9.2-3"
-export PIKA_PACKAGE_NAME="haskell-wai-middleware-static"
+export PIKA_PACKAGE_VERSION="1.1+18-2"
+export PIKA_PACKAGE_NAME="ocaml-mccs"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"