diff --git a/protocols/grpc/api/BUCK b/protocols/grpc/api/BUCK
index f0c8fd3..e0dad74 100644
--- a/protocols/grpc/api/BUCK
+++ b/protocols/grpc/api/BUCK
@@ -1,4 +1,4 @@
-GRPC_VER = '1.3.0'
+GRPC_VER = '1.3.1'
 
 COMPILE_DEPS = [
     '//lib:CORE_DEPS',