diff --git a/host-bmc/dbus_to_event_handler.cpp b/host-bmc/dbus_to_event_handler.cpp
index 4b11654..891a769 100644
--- a/host-bmc/dbus_to_event_handler.cpp
+++ b/host-bmc/dbus_to_event_handler.cpp
@@ -129,7 +129,7 @@
                         props.at(dbusMapping.propertyName));
 
                     auto values = pldm::utils::split(src, "||", " ");
-                    for (auto& value : values)
+                    for (const auto& value : values)
                     {
                         if (value == dst)
                         {
diff --git a/libpldmresponder/fru.cpp b/libpldmresponder/fru.cpp
index a9ef613..d9702ff 100644
--- a/libpldmresponder/fru.cpp
+++ b/libpldmresponder/fru.cpp
@@ -100,7 +100,7 @@
 
                 pldm_entity entity = *entityPtr;
 
-                for (auto& it : objToEntityNode)
+                for (const auto& it : objToEntityNode)
                 {
                     pldm_entity node = pldm_entity_extract(it.second);
                     if (node.entity_type == entity.entity_type)
diff --git a/libpldmresponder/test/libpldmresponder_bios_config_test.cpp b/libpldmresponder/test/libpldmresponder_bios_config_test.cpp
index 9bcf096..16c88f1 100644
--- a/libpldmresponder/test/libpldmresponder_bios_config_test.cpp
+++ b/libpldmresponder/test/libpldmresponder_bios_config_test.cpp
@@ -39,7 +39,7 @@
             "./bios_jsons/enum_attrs.json",
         };
 
-        for (auto& path : paths)
+        for (const auto& path : paths)
         {
             std::ifstream file;
             file.open(path);
diff --git a/oem/ibm/libpldmresponder/file_io.hpp b/oem/ibm/libpldmresponder/file_io.hpp
index 9e158dc..63cd51b 100644
--- a/oem/ibm/libpldmresponder/file_io.hpp
+++ b/oem/ibm/libpldmresponder/file_io.hpp
@@ -249,7 +249,7 @@
             std::string vspstring;
             std::string password;
 
-            for (auto& interface : interfaces)
+            for (const auto& interface : interfaces)
             {
                 if (interface.first == resDumpEntry)
                 {
@@ -288,7 +288,7 @@
             msg.read(path, interfaces);
             std::string csr;
 
-            for (auto& interface : interfaces)
+            for (const auto& interface : interfaces)
             {
                 if (interface.first == certAuthority)
                 {
diff --git a/pldmtool/pldm_platform_cmd.cpp b/pldmtool/pldm_platform_cmd.cpp
index 6a75cf8..e4d2a7c 100644
--- a/pldmtool/pldm_platform_cmd.cpp
+++ b/pldmtool/pldm_platform_cmd.cpp
@@ -675,7 +675,7 @@
         std::vector<std::string> data{};
         std::map<uint8_t, std::string> stateNameMaps;
 
-        for (auto& s : value)
+        for (const auto& s : value)
         {
             std::map<uint8_t, std::string> stateNameMaps;
             auto pstr = std::to_string(s);