diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index afcb85f3e..dbd2dcd1b 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.1.4-3"
-export PIKA_PACKAGE_NAME="r-cran-dplyr"
+export PIKA_PACKAGE_VERSION="0.3.9-1"
+export PIKA_PACKAGE_NAME="rust-arrayref"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"