diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 746c2c2ba..97a73b45e 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.21+git20211014.31ea715-2"
-export PIKA_PACKAGE_NAME="pyvenv-el"
+export PIKA_PACKAGE_VERSION="6.10-2"
+export PIKA_PACKAGE_NAME="sml-mode"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"