diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 65e1e12d0..d8c6c8e1c 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.9.0-4"
-export PIKA_PACKAGE_NAME="aggressive-indent-mode"
+export PIKA_PACKAGE_VERSION="1.8.0-1"
+export PIKA_PACKAGE_NAME="python-milc"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"