diff --git a/redfish-core/lib/account_service.hpp b/redfish-core/lib/account_service.hpp
index 97e5f64..475e09c 100644
--- a/redfish-core/lib/account_service.hpp
+++ b/redfish-core/lib/account_service.hpp
@@ -181,8 +181,8 @@
 
         std::string username;
         std::string password;
-        boost::optional<std::string> roleId("User");
-        boost::optional<bool> enabled = true;
+        std::optional<std::string> roleId("User");
+        std::optional<bool> enabled = true;
         if (!json_util::readJson(req, res, "UserName", username, "Password",
                                  password, "RoleId", roleId, "Enabled",
                                  enabled))
@@ -412,10 +412,10 @@
             return;
         }
 
-        boost::optional<std::string> newUserName;
-        boost::optional<std::string> password;
-        boost::optional<bool> enabled;
-        boost::optional<std::string> roleId;
+        std::optional<std::string> newUserName;
+        std::optional<std::string> password;
+        std::optional<bool> enabled;
+        std::optional<std::string> roleId;
         if (!json_util::readJson(req, res, "UserName", newUserName, "Password",
                                  password, "RoleId", roleId, "Enabled",
                                  enabled))
@@ -460,9 +460,9 @@
 
     void updateUserProperties(std::shared_ptr<AsyncResp> asyncResp,
                               const std::string& username,
-                              boost::optional<std::string> password,
-                              boost::optional<bool> enabled,
-                              boost::optional<std::string> roleId)
+                              std::optional<std::string> password,
+                              std::optional<bool> enabled,
+                              std::optional<std::string> roleId)
     {
         if (password)
         {
diff --git a/redfish-core/lib/ethernet.hpp b/redfish-core/lib/ethernet.hpp
index 58896d8..d3fe1fe 100644
--- a/redfish-core/lib/ethernet.hpp
+++ b/redfish-core/lib/ethernet.hpp
@@ -17,10 +17,10 @@
 
 #include <boost/container/flat_map.hpp>
 #include <boost/container/flat_set.hpp>
-#include <boost/optional.hpp>
 #include <dbus_singleton.hpp>
 #include <error_messages.hpp>
 #include <node.hpp>
+#include <optional>
 #include <utils/json_utils.hpp>
 
 namespace redfish
@@ -80,7 +80,7 @@
     std::string hostname;
     std::string default_gateway;
     std::string mac_address;
-    boost::optional<uint32_t> vlan_id;
+    std::optional<uint32_t> vlan_id;
 };
 
 // Helper function that changes bits netmask notation (i.e. /24)
@@ -1028,7 +1028,7 @@
                 }
             }
 
-            boost::optional<uint8_t> prefixLength;
+            std::optional<uint8_t> prefixLength;
             const std::string *subnetField = nullptr;
             nlohmann::json::const_iterator subnetFieldIt =
                 thisJson.find("SubnetMask");
diff --git a/redfish-core/lib/systems.hpp b/redfish-core/lib/systems.hpp
index 12f15d1..354570c 100644
--- a/redfish-core/lib/systems.hpp
+++ b/redfish-core/lib/systems.hpp
@@ -764,7 +764,7 @@
         messages::success(asyncResp->res);
 
         std::string indicatorLedTemp;
-        boost::optional<std::string> indicatorLed = indicatorLedTemp;
+        std::optional<std::string> indicatorLed = indicatorLedTemp;
         if (!json_util::readJson(req, res, "IndicatorLed", indicatorLed))
         {
             return;