diff --git a/agent/test/Makefile b/agent/test/Makefile
index 87f03a1..0272102 100644
--- a/agent/test/Makefile
+++ b/agent/test/Makefile
@@ -64,7 +64,7 @@
 
 export CXX CXXFLAGS OPENOLT_PROTO_VER
 
-BAL_API_VER ?= bal-api-3.4.3.3
+BAL_API_VER ?= bal-api-3.4.7.5
 BAL_API_DIR=$(BAL_API_VER)
 BALLIBNAME=bcm_host_api_stubs
 BALLIBDIR=$(BAL_API_DIR)/stubs