diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index e5e921081..bb2f1c526 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2.004001-1"
-export PIKA_PACKAGE_NAME="libmath-bigint-perl"
+export PIKA_PACKAGE_VERSION="1.6-1.1"
+export PIKA_PACKAGE_NAME="svn-load"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"