diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index ee4bb3683..994d5af64 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.15.15-3"
-export PIKA_PACKAGE_NAME="rust-rowan"
+export PIKA_PACKAGE_VERSION="0.15.0-4"
+export PIKA_PACKAGE_NAME="hydra-el"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"