diff --git a/versions.txt b/versions.txt
index fb3ba831e..f02899c34 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,3 +1,4 @@
+REL|5.5.2121|https://github.com/plan-player-analytics/Plan/releases/download/5.5.2121/Plan-5.5-build-2121.jar|https://github.com/plan-player-analytics/Plan/releases
 REL|5.5 build 2100|https://github.com/plan-player-analytics/Plan/releases/download/5.5.2100/Plan-5.5-build-2100.jar|https://github.com/plan-player-analytics/Plan/releases
 DEV|5.5 build 2076|https://github.com/plan-player-analytics/Plan/releases/download/5.5.2076/Plan-5.5-dev-build-2076.jar|https://github.com/plan-player-analytics/Plan/releases/tag/5.5.2076
 REL|5.5 build 1984|https://github.com/plan-player-analytics/Plan/releases/download/5.5.1984/Plan-5.5-build-1984.jar|https://github.com/plan-player-analytics/Plan/releases