diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 5edc37a53..c3ff5a7e1 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.2.1-1"
-export PIKA_PACKAGE_NAME="coq-deriving"
+export PIKA_PACKAGE_VERSION="1.6-6"
+export PIKA_PACKAGE_NAME="sixer"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"