diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 520c6a1a5..57c334fbe 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.4.3+ds-4"
-export PIKA_PACKAGE_NAME="flac"
+export PIKA_PACKAGE_VERSION="3.1.0-1"
+export PIKA_PACKAGE_NAME="cloudpickle"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"