diff --git a/Projects/Athena/version.txt b/Projects/Athena/version.txt
index a84ad27e74a43dc3bb5698197c28f3d6b9598380..ac0f378bb5786d27d39c5efda03baff47171dab2 100644
--- a/Projects/Athena/version.txt
+++ b/Projects/Athena/version.txt
@@ -1 +1 @@
-21.0.52
+21.0.53