diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 3927eab8a..c8421b015 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2.1-6-1"
-export PIKA_PACKAGE_NAME="r-cran-mlbench"
+export PIKA_PACKAGE_VERSION="3.4.1+ds1-2"
+export PIKA_PACKAGE_NAME="rsync"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"