diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 94355f738..04bb61d2a 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="7.2-1"
-export PIKA_PACKAGE_NAME="pglast"
+export PIKA_PACKAGE_VERSION="3.9.1-9"
+export PIKA_PACKAGE_NAME="postfix"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"