diff --git a/deployment-configs/flex-ocp-cord-TT.yaml b/deployment-configs/flex-ocp-cord-TT.yaml
index 968927c..cc9c91f 100644
--- a/deployment-configs/flex-ocp-cord-TT.yaml
+++ b/deployment-configs/flex-ocp-cord-TT.yaml
@@ -50,7 +50,7 @@
     fortygig: 'true'
     aggPort: '10'
     serial: 'EC1838000853'
-    oltDebVersion: openolt_asfvolt16-2.4.9-dev-d4aeca5a2094f7dc7c519913ab1558348c546dab.deb
+    oltDebVersion: openolt_asfvolt16-2.5.1-cb175000207c7dc9b1468189290ee3df80fadb4a.deb-BAL3.4.9.6
     oltDebVersion23: openolt_asfvolt16-2.4.9-dev-d4aeca5a2094f7dc7c519913ab1558348c546dab.deb
 
 onus: