diff --git a/Projects/AthSimulation/version.txt b/Projects/AthSimulation/version.txt
index 2f510b6a7041776c8fa2a58a657197cbd1c741bc..2ceacf8349d36a965a1d5d4519396a5445074532 100644
--- a/Projects/AthSimulation/version.txt
+++ b/Projects/AthSimulation/version.txt
@@ -1 +1 @@
-21.0.120
+21.0.121