diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 5d2016d1a..87201edc0 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.5.517-2.1"
-export PIKA_PACKAGE_NAME="mumble"
+export PIKA_PACKAGE_VERSION="4.0.0-1"
+export PIKA_PACKAGE_NAME="ruby-colored2"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"