diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 2b6da15f9..9c6e36156 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.5-9"
-export PIKA_PACKAGE_NAME="python-sphinxcontrib.plantuml"
+export PIKA_PACKAGE_VERSION="2.1.0-5"
+export PIKA_PACKAGE_NAME="python-tackerclient"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"