diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index d91715d82..5d4953789 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="5.3.1-2"
-export PIKA_PACKAGE_NAME="golang-github-santhosh-tekuri-jsonschema"
+export PIKA_PACKAGE_VERSION="1.1-12-1"
+export PIKA_PACKAGE_NAME="r-cran-vgam"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"