diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 76552e404..02a19ddc5 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.2.3-1"
-export PIKA_PACKAGE_NAME="r-cran-rio"
+export PIKA_PACKAGE_VERSION="3.10-9"
+export PIKA_PACKAGE_NAME="mumax3"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"