diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index c72aae403..aadc8eeee 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="7.0.8-3"
-export PIKA_PACKAGE_NAME="fet"
+export PIKA_PACKAGE_VERSION="1.3.1-5"
+export PIKA_PACKAGE_NAME="guile-fibers"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"