diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 870ee5a8a..c04b10966 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2.2.0-1"
-export PIKA_PACKAGE_NAME="ruby-rack-test"
+export PIKA_PACKAGE_VERSION="2.7.6+dfsg-1"
+export PIKA_PACKAGE_NAME="ruby-json"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"