diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index ec3e8df20..f82e47fe4 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="3.13.1-3"
-export PIKA_PACKAGE_NAME="python-mashumaro"
+export PIKA_PACKAGE_VERSION="0.5-2"
+export PIKA_PACKAGE_NAME="python-firehose"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"