diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 4179fbc3a..dc43acedc 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2.0.6-1"
-export PIKA_PACKAGE_NAME="haskell-os-string"
+export PIKA_PACKAGE_VERSION="15.0.0-1"
+export PIKA_PACKAGE_NAME="octavia"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"