diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 9a46d31ae..006ad20f9 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2.14.1-7"
-export PIKA_PACKAGE_NAME="mir"
+export PIKA_PACKAGE_VERSION="0.31.1-5"
+export PIKA_PACKAGE_NAME="gnustep-gui"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"