diff --git a/include/ocpp/common/evse_security_impl.hpp b/include/ocpp/common/evse_security_impl.hpp
index cc6469c2ee..9b9f42ef1e 100644
--- a/include/ocpp/common/evse_security_impl.hpp
+++ b/include/ocpp/common/evse_security_impl.hpp
@@ -8,18 +8,19 @@
 
 #include <evse_security.hpp>
 #include <ocpp/common/evse_security.hpp>
+#include <ocpp/common/support_older_cpp_versions.hpp>
 
 namespace ocpp {
 
 struct SecurityConfiguration {
-    std::filesystem::path csms_ca_bundle;
-    std::filesystem::path mf_ca_bundle;
-    std::filesystem::path mo_ca_bundle;
-    std::filesystem::path v2g_ca_bundle;
-    std::filesystem::path csms_leaf_cert_directory;
-    std::filesystem::path csms_leaf_key_directory;
-    std::filesystem::path secc_leaf_cert_directory;
-    std::filesystem::path secc_leaf_key_directory;
+    fs::path csms_ca_bundle;
+    fs::path mf_ca_bundle;
+    fs::path mo_ca_bundle;
+    fs::path v2g_ca_bundle;
+    fs::path csms_leaf_cert_directory;
+    fs::path csms_leaf_key_directory;
+    fs::path secc_leaf_cert_directory;
+    fs::path secc_leaf_key_directory;
     std::optional<std::string> private_key_password;
 };
 
@@ -81,4 +82,4 @@ evse_security::KeyPair from_ocpp(KeyPair other);
 
 } // namespace ocpp
 
-#endif
\ No newline at end of file
+#endif
diff --git a/include/ocpp/common/types.hpp b/include/ocpp/common/types.hpp
index 109eb3b764..7e084aa712 100644
--- a/include/ocpp/common/types.hpp
+++ b/include/ocpp/common/types.hpp
@@ -17,6 +17,7 @@
 #include <date/tz.h>
 
 #include <ocpp/common/cistring.hpp>
+#include <ocpp/common/support_older_cpp_versions.hpp>
 #include <ocpp/v16/enums.hpp>
 #include <ocpp/v201/enums.hpp>
 
@@ -506,8 +507,8 @@ struct OCSPRequestData {
 };
 
 struct KeyPair {
-    std::filesystem::path certificate_path;
-    std::filesystem::path key_path;
+    fs::path certificate_path;
+    fs::path key_path;
     std::optional<std::string> password;
 };
 
diff --git a/include/ocpp/v16/charge_point.hpp b/include/ocpp/v16/charge_point.hpp
index eb3337aaa1..86f956c021 100644
--- a/include/ocpp/v16/charge_point.hpp
+++ b/include/ocpp/v16/charge_point.hpp
@@ -60,9 +60,8 @@ class ChargePoint {
     /// security_configuration must be set
     /// \param security_configuration specifies the file paths that are required to set up the internal evse_security
     /// implementation
-    explicit ChargePoint(const std::string& config, const std::filesystem::path& share_path,
-                         const std::filesystem::path& user_config_path, const std::filesystem::path& database_path,
-                         const std::filesystem::path& sql_init_path, const std::filesystem::path& message_log_path,
+    explicit ChargePoint(const std::string& config, const fs::path& share_path, const fs::path& user_config_path,
+                         const fs::path& database_path, const fs::path& sql_init_path, const fs::path& message_log_path,
                          const std::shared_ptr<EvseSecurity> evse_security,
                          const std::optional<SecurityConfiguration> security_configuration = std::nullopt);
 
diff --git a/include/ocpp/v16/charge_point_impl.hpp b/include/ocpp/v16/charge_point_impl.hpp
index ed6ca9ee2f..67f652fb16 100644
--- a/include/ocpp/v16/charge_point_impl.hpp
+++ b/include/ocpp/v16/charge_point_impl.hpp
@@ -315,10 +315,9 @@ class ChargePointImpl : ocpp::ChargingStationBase {
     /// also available) configuration keys in the "Internal" section of the config file. Please note that this is
     /// intended for debugging purposes only as it logs all communication, including authentication messages.
     /// \param evse_security Pointer to evse_security that manages security related operations
-    explicit ChargePointImpl(const std::string& config, const std::filesystem::path& share_path,
-                             const std::filesystem::path& user_config_path, const std::filesystem::path& database_path,
-                             const std::filesystem::path& sql_init_path, const std::filesystem::path& message_log_path,
-                             const std::shared_ptr<EvseSecurity> evse_security,
+    explicit ChargePointImpl(const std::string& config, const fs::path& share_path, const fs::path& user_config_path,
+                             const fs::path& database_path, const fs::path& sql_init_path,
+                             const fs::path& message_log_path, const std::shared_ptr<EvseSecurity> evse_security,
                              const std::optional<SecurityConfiguration> security_configuration);
 
     ~ChargePointImpl() {
diff --git a/lib/ocpp/common/schemas.cpp b/lib/ocpp/common/schemas.cpp
index 5cb7c8d22a..95b62f96b7 100644
--- a/lib/ocpp/common/schemas.cpp
+++ b/lib/ocpp/common/schemas.cpp
@@ -31,7 +31,7 @@ void Schemas::load_root_schema() {
     this->schema = json::parse(schema_file);
 
     const auto custom_schema_path = schemas_path / "Custom.json";
-    if (std::filesystem::exists(custom_schema_path)) {
+    if (fs::exists(custom_schema_path)) {
         json custom_object = {{"type", "object"}, {"$ref", "Custom.json"}};
         this->schema["properties"]["Custom"] = custom_object;
     }
diff --git a/lib/ocpp/v16/charge_point.cpp b/lib/ocpp/v16/charge_point.cpp
index 676cb5ccb6..43a30f9d09 100644
--- a/lib/ocpp/v16/charge_point.cpp
+++ b/lib/ocpp/v16/charge_point.cpp
@@ -10,9 +10,8 @@
 namespace ocpp {
 namespace v16 {
 
-ChargePoint::ChargePoint(const std::string& config, const std::filesystem::path& share_path,
-                         const std::filesystem::path& user_config_path, const std::filesystem::path& database_path,
-                         const std::filesystem::path& sql_init_path, const std::filesystem::path& message_log_path,
+ChargePoint::ChargePoint(const std::string& config, const fs::path& share_path, const fs::path& user_config_path,
+                         const fs::path& database_path, const fs::path& sql_init_path, const fs::path& message_log_path,
                          const std::shared_ptr<EvseSecurity> evse_security,
                          const std::optional<SecurityConfiguration> security_configuration) {
     this->charge_point =
diff --git a/lib/ocpp/v16/charge_point_impl.cpp b/lib/ocpp/v16/charge_point_impl.cpp
index 3894804168..2575b6c7f7 100644
--- a/lib/ocpp/v16/charge_point_impl.cpp
+++ b/lib/ocpp/v16/charge_point_impl.cpp
@@ -19,10 +19,9 @@ const auto OCSP_REQUEST_TIMER_INTERVAL = std::chrono::hours(12);
 const auto INITIAL_CERTIFICATE_REQUESTS_DELAY = std::chrono::seconds(60);
 const auto WEBSOCKET_INIT_DELAY = std::chrono::seconds(2);
 
-ChargePointImpl::ChargePointImpl(const std::string& config, const std::filesystem::path& share_path,
-                                 const std::filesystem::path& user_config_path,
-                                 const std::filesystem::path& database_path, const std::filesystem::path& sql_init_path,
-                                 const std::filesystem::path& message_log_path,
+ChargePointImpl::ChargePointImpl(const std::string& config, const fs::path& share_path,
+                                 const fs::path& user_config_path, const fs::path& database_path,
+                                 const fs::path& sql_init_path, const fs::path& message_log_path,
                                  const std::shared_ptr<EvseSecurity> evse_security,
                                  const std::optional<SecurityConfiguration> security_configuration) :
     ocpp::ChargingStationBase(evse_security, security_configuration),