diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 3699fb182..2fa4f5970 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.0.6+ds1-12"
-export PIKA_PACKAGE_NAME="jupyter-sphinx-theme"
+export PIKA_PACKAGE_VERSION="2.59.0+dfsg-1"
+export PIKA_PACKAGE_NAME="librsvg"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"