diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index e4b2b9c01..4d5143880 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="8.1.3-4"
-export PIKA_PACKAGE_NAME="sphinx"
+export PIKA_PACKAGE_VERSION="0.8.0-2"
+export PIKA_PACKAGE_NAME="warp"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"