diff --git a/deployment-configs/flex-ocp-cord-TT.yaml b/deployment-configs/flex-ocp-cord-TT.yaml
index 6477732..31caa38 100644
--- a/deployment-configs/flex-ocp-cord-TT.yaml
+++ b/deployment-configs/flex-ocp-cord-TT.yaml
@@ -50,7 +50,7 @@
     fortygig: 'true'
     aggPort: '1'
     serial: 'EC1838000853'
-    oltDebVersion: openolt_asfvolt16-3.6.2-602bf0a2b75e27e241cb73d7daf1e2c883539102-40G-NNI.deb
+    oltDebVersion: openolt_asfvolt16-3.7.4-3b190f027136e845c5850a5b1a97897ce2b74ebf-40G-NNI.deb
     board_technology: XGS-PON
     power_switch_port: 6