diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 70aa84d3a..7bac9b30a 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="3.0.1+dfsg-1"
-export PIKA_PACKAGE_NAME="sphinx-rtd-theme"
+export PIKA_PACKAGE_VERSION="6.1.2-2"
+export PIKA_PACKAGE_NAME="rocr-runtime"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"