diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 54d79fa59..15a7f2556 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.10.2-2"
-export PIKA_PACKAGE_NAME="rust-compiletest-rs"
+export PIKA_PACKAGE_VERSION="2.5.1-6"
+export PIKA_PACKAGE_NAME="routes"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"