diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index a2a85cd0e..d0b540d97 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2.6.0-2"
-export PIKA_PACKAGE_NAME="python-b2sdk"
+export PIKA_PACKAGE_VERSION="14.3.0-8"
+export PIKA_PACKAGE_NAME="python-characteristic"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"