diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 8e49e5aa9..9a210eafa 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="24.8.0-1.1"
-export PIKA_PACKAGE_NAME="txtorcon"
+export PIKA_PACKAGE_VERSION="1.3.1-1"
+export PIKA_PACKAGE_NAME="guile-fibers"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"