diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 6664c6cc4..fd391f253 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="5.1.6-1"
-export PIKA_PACKAGE_NAME="fcitx5-kkc"
+export PIKA_PACKAGE_VERSION="4.2.2+dfsg-2"
+export PIKA_PACKAGE_NAME="wxpython4.0"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"