diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 23734484a..87e24c557 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2.2.0-7"
-export PIKA_PACKAGE_NAME="apache-mode-el"
+export PIKA_PACKAGE_VERSION="115.13.0esr-2"
+export PIKA_PACKAGE_NAME="firefox-esr"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"