diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 9d373b00c..c92b81ec9 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.7.0-2"
-export PIKA_PACKAGE_NAME="rust-tealdeer"
+export PIKA_PACKAGE_VERSION="3.9.0-1"
+export PIKA_PACKAGE_NAME="mpl-sphinx-theme"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"