diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 603d1de2b..f39a90854 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="3.0.0-2"
-export PIKA_PACKAGE_NAME="sphinxcontrib-blockdiag"
+export PIKA_PACKAGE_VERSION="1.7.5-2"
+export PIKA_PACKAGE_NAME="python-docformatter"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"