diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index b4d67993e..67d968778 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.0.6-1"
-export PIKA_PACKAGE_NAME="flatpak-xdg-utils"
+export PIKA_PACKAGE_VERSION="5.15.15-1"
+export PIKA_PACKAGE_NAME="qtwebsockets-opensource-src"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"