diff --git a/api/bbsim/bbsim.pb.go b/api/bbsim/bbsim.pb.go
index 729aadd..7d3a9ee 100644
--- a/api/bbsim/bbsim.pb.go
+++ b/api/bbsim/bbsim.pb.go
@@ -1174,11 +1174,11 @@
 
 // Reference imports to suppress errors if they are not otherwise used.
 var _ context.Context
-var _ grpc.ClientConnInterface
+var _ grpc.ClientConn
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-const _ = grpc.SupportPackageIsVersion6
+const _ = grpc.SupportPackageIsVersion4
 
 // BBSimClient is the client API for BBSim service.
 //
@@ -1208,10 +1208,10 @@
 }
 
 type bBSimClient struct {
-	cc grpc.ClientConnInterface
+	cc *grpc.ClientConn
 }
 
-func NewBBSimClient(cc grpc.ClientConnInterface) BBSimClient {
+func NewBBSimClient(cc *grpc.ClientConn) BBSimClient {
 	return &bBSimClient{cc}
 }