diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 0ff824cb0..eff8d9f25 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.3.3-1"
-export PIKA_PACKAGE_NAME="rust-tower-layer"
+export PIKA_PACKAGE_VERSION="1.7.3-2"
+export PIKA_PACKAGE_NAME="libconfig"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"