diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 994c0dc40..c83c2e52c 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="4.15.5+ds-1"
-export PIKA_PACKAGE_NAME="gtk4"
+export PIKA_PACKAGE_VERSION="0.0.4-1.2"
+export PIKA_PACKAGE_NAME="math-numeric-tower-clojure"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"