diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 8e299b378..8646dca43 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.4.8~rc2-3"
-export PIKA_PACKAGE_NAME="python-grpclib"
+export PIKA_PACKAGE_VERSION="6.7.3-1"
+export PIKA_PACKAGE_NAME="pyside6"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"