diff --git a/releases.py b/releases.py
index b5faf6e0e2768..26698e53e329c 100644
--- a/releases.py
+++ b/releases.py
@@ -18,6 +18,7 @@
 ]
 
 RELEASE_BRANCH_PRODUCTION = [
+  "CMSSW_7_3_X",
   "CMSSW_7_2_X",
   "CMSSW_7_1_X",
   "CMSSW_7_0_X",