diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 89c886cf1..ec39c747d 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="4.0.3+dfsg-1"
-export PIKA_PACKAGE_NAME="python-signxml"
+export PIKA_PACKAGE_VERSION="0.78.3-3"
+export PIKA_PACKAGE_NAME="vte2.91"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"