diff --git a/redfish-core/lib/network_protocol.hpp b/redfish-core/lib/network_protocol.hpp
index b82e697..65b90f7 100644
--- a/redfish-core/lib/network_protocol.hpp
+++ b/redfish-core/lib/network_protocol.hpp
@@ -54,10 +54,8 @@
                std::string, sdbusplus::message::object_path, uint32_t,
                std::string, sdbusplus::message::object_path>;
 
-const static boost::container::flat_map<const char*, std::string>
-    protocolToDBus{{"SSH", "dropbear"},
-                   {"HTTPS", "bmcweb"},
-                   {"IPMI", "phosphor-ipmi-net"}};
+const static std::array<std::pair<const char*, const char*>, 3> protocolToDBus{
+    {{"SSH", "dropbear"}, {"HTTPS", "bmcweb"}, {"IPMI", "phosphor-ipmi-net"}}};
 
 inline void
     extractNTPServersAndDomainNamesData(const GetManagedObjects& dbusData,