diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 9bbeba989..e02ef36de 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.5.7.4-0.2"
-export PIKA_PACKAGE_NAME="zfec"
+export PIKA_PACKAGE_VERSION="4.2.20+ds-1"
+export PIKA_PACKAGE_NAME="raritan-json-rpc-sdk"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"