diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 7391adb23..414b8b004 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.8.0-2"
-export PIKA_PACKAGE_NAME="python-milc"
+export PIKA_PACKAGE_VERSION="3.0.0-1"
+export PIKA_PACKAGE_NAME="sphinxcontrib-blockdiag"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"