diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 2a14e9a00..bf25e6b7d 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="4.7-1.2-1"
-export PIKA_PACKAGE_NAME="r-cran-randomforest"
+export PIKA_PACKAGE_VERSION="1.14.3-1"
+export PIKA_PACKAGE_NAME="r-cran-ks"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"