diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 1fb255050..6c8296e27 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.105+ds-1"
-export PIKA_PACKAGE_NAME="distribution-gpg-keys"
+export PIKA_PACKAGE_VERSION="6.4.1-2"
+export PIKA_PACKAGE_NAME="python-tornado"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"