diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index f72821c0a..9ee9c0234 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.53-1"
-export PIKA_PACKAGE_NAME="libdata-peek-perl"
+export PIKA_PACKAGE_VERSION="3.9.1-10"
+export PIKA_PACKAGE_NAME="postfix"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"