diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index e8dcd95fb..4983ddf5b 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.5.3-1.1"
-export PIKA_PACKAGE_NAME="python-asyncsleepiq"
+export PIKA_PACKAGE_VERSION="5.40.0-8"
+export PIKA_PACKAGE_NAME="perl"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"