diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 3107be7a2..2a3d67667 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0+git2021.11.18-3"
-export PIKA_PACKAGE_NAME="specreduce-data"
+export PIKA_PACKAGE_VERSION="3.3.8-3.4"
+export PIKA_PACKAGE_NAME="mailman3"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"