diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 35c10c23b..43fffe4e8 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1:7.28.0-dmo4"
-export PIKA_PACKAGE_NAME="mlt7-dmo"
+export PIKA_PACKAGE_VERSION="5.15.11+dfsg-1"
+export PIKA_PACKAGE_NAME="pyqt5"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b35"