diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 414b8b004..862d00fe4 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="3.0.0-1"
-export PIKA_PACKAGE_NAME="sphinxcontrib-blockdiag"
+export PIKA_PACKAGE_VERSION="1.0.1-14"
+export PIKA_PACKAGE_NAME="mathcomp-bigenough"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"