diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 01d760b74..1685272eb 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.10.0-1"
-export PIKA_PACKAGE_NAME="rust-sequoia-octopus-librnp"
+export PIKA_PACKAGE_VERSION="0.17.0-1"
+export PIKA_PACKAGE_NAME="ocaml-parsexp"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"