diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index bbf0c6ace..8e783c72f 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.23.0-1"
-export PIKA_PACKAGE_NAME="ocaml-ctypes"
+export PIKA_PACKAGE_VERSION="0.0~git20240411.9e8c542-3"
+export PIKA_PACKAGE_NAME="wasi-libc"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"