diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index b9c714889..08a153851 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.2.0-3"
-export PIKA_PACKAGE_NAME="mapbox-variant"
+export PIKA_PACKAGE_VERSION="4.3ga10-4"
+export PIKA_PACKAGE_NAME="ibm-3270"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"