diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index d744b1590..6c8dbbc19 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.21.12-8"
-export PIKA_PACKAGE_NAME="rust-rustls"
+export PIKA_PACKAGE_VERSION="7.3-23-1"
+export PIKA_PACKAGE_NAME="r-cran-class"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"