diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index bf5e27bc2..61ebe67d1 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="11.0.0"
-export PIKA_PACKAGE_NAME="media-types"
+export PIKA_PACKAGE_VERSION="4"
+export PIKA_PACKAGE_NAME="libstdc++-riscv64-unknown-elf"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"