diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index fc4ee9f28..0c7e62a93 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="3.22.2+dfsg1-1"
-export PIKA_PACKAGE_NAME="petsc"
+export PIKA_PACKAGE_VERSION="0.35.1-2"
+export PIKA_PACKAGE_NAME="referencing"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"