diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index c8a9e8e47..159c748a2 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,6 +1,6 @@
-export PIKA_PACKAGE_VERSION="5.115.0-2"
-export PIKA_PACKAGE_NAME="knotifications"
+export PIKA_PACKAGE_VERSION="4.15.4+ds-2"
+export PIKA_PACKAGE_NAME="gtk4"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=true
-export PIKA_REBUILD_VERSION="b34"
+export PIKA_REBUILD_VERSION="b3"
 export PIKA_BUILD_ATTEMPT="2"
\ No newline at end of file