diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 7d176e695..498259f25 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.0.0-5"
-export PIKA_PACKAGE_NAME="sgmllib3k"
+export PIKA_PACKAGE_VERSION="1.9.8-2"
+export PIKA_PACKAGE_NAME="python-dpkt"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b3"