diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index f9dd5545d..faf5790e7 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.0.1.2-4"
-export PIKA_PACKAGE_NAME="haskell-secret-sharing"
+export PIKA_PACKAGE_VERSION="0.013-1"
+export PIKA_PACKAGE_NAME="libextutils-builder-perl"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"