diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 926e4668b..1ce422d6b 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.6.2-1"
-export PIKA_PACKAGE_NAME="fpylll"
+export PIKA_PACKAGE_VERSION="3.9.1-5"
+export PIKA_PACKAGE_NAME="postfix"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"