diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 4e372326e..be00359a2 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.1-8"
-export PIKA_PACKAGE_NAME="cyarray"
+export PIKA_PACKAGE_VERSION="6.6.2-2"
+export PIKA_PACKAGE_NAME="qt6-serialport"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"