diff --git a/mosquitto-auth-plugin/Makefile b/mosquitto-auth-plugin/Makefile
index 97a554c84..fb637ccc4 100644
--- a/mosquitto-auth-plugin/Makefile
+++ b/mosquitto-auth-plugin/Makefile
@@ -14,7 +14,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=mosquitto-auth-plugin
-PKG_VERSION:=1.2.0
+PKG_VERSION:=1.2.1
 
 PKG_MAINTAINER:=Erik Karlsson <erik.karlsson@genexis.eu>
 PKG_LICENSE:=EPL-2.0
diff --git a/mosquitto-auth-plugin/src/mosquitto_auth_plugin.c b/mosquitto-auth-plugin/src/mosquitto_auth_plugin.c
index 50dced33b..fcb183e37 100644
--- a/mosquitto-auth-plugin/src/mosquitto_auth_plugin.c
+++ b/mosquitto-auth-plugin/src/mosquitto_auth_plugin.c
@@ -53,6 +53,7 @@ typedef struct {
 	user_acl_t users[MAX_USERS];
 	int user_count;
 	mosquitto_plugin_id_t *identifier;
+	char *config_file;
 } plugin_data_t;
 
 /* Parse CIDR notation for IPv4 or IPv6 (e.g., "192.168.1.0/24" or "2001:db8::/32") */
@@ -548,6 +549,30 @@ static int basic_auth_callback(int event, void *event_data, void *userdata)
 	return check_subnet_on_auth(pdata, ed);
 }
 
+static int reload_callback(int event, void *event_data, void *userdata)
+{
+	plugin_data_t *pdata = userdata;
+
+	if (pdata == NULL)
+		return MOSQ_ERR_SUCCESS;
+
+	mosquitto_log_printf(MOSQ_LOG_NOTICE,
+		"subnet_acl: Reloading subnet ACL configuration from '%s'",
+		pdata->config_file ? pdata->config_file : "(none)");
+
+	/* Reload subnet ACL configuration */
+	if (load_subnet_acl_config(pdata, pdata->config_file) != 0) {
+		mosquitto_log_printf(MOSQ_LOG_ERR,
+			"subnet_acl: Failed to reload subnet ACL configuration, keeping old config");
+		return MOSQ_ERR_UNKNOWN;
+	}
+
+	mosquitto_log_printf(MOSQ_LOG_NOTICE,
+		"subnet_acl: Reload complete, now tracking %d user(s)", pdata->user_count);
+
+	return MOSQ_ERR_SUCCESS;
+}
+
 int mosquitto_plugin_version(int supported_version_count,
 			     const int *supported_versions)
 {
@@ -576,8 +601,20 @@ int mosquitto_plugin_init(mosquitto_plugin_id_t *identifier,
 
 	pdata->identifier = identifier;
 
+	/* Store config file path for reload */
+	if (config_file != NULL) {
+		pdata->config_file = strdup(config_file);
+		if (pdata->config_file == NULL) {
+			free(pdata);
+			return MOSQ_ERR_NOMEM;
+		}
+	} else {
+		pdata->config_file = NULL;
+	}
+
 	/* Load subnet ACL configuration */
 	if (load_subnet_acl_config(pdata, config_file) != 0) {
+		free(pdata->config_file);
 		free(pdata);
 		return MOSQ_ERR_UNKNOWN;
 	}
@@ -588,6 +625,20 @@ int mosquitto_plugin_init(mosquitto_plugin_id_t *identifier,
 	if (rc != MOSQ_ERR_SUCCESS) {
 		mosquitto_log_printf(MOSQ_LOG_ERR,
 			"subnet_acl: Failed to register authentication callback");
+		free(pdata->config_file);
+		free(pdata);
+		return rc;
+	}
+
+	/* Register reload callback to handle SIGHUP */
+	rc = mosquitto_callback_register(identifier, MOSQ_EVT_RELOAD,
+	                                 reload_callback, NULL, pdata);
+	if (rc != MOSQ_ERR_SUCCESS) {
+		mosquitto_log_printf(MOSQ_LOG_ERR,
+			"subnet_acl: Failed to register reload callback");
+		mosquitto_callback_unregister(identifier, MOSQ_EVT_BASIC_AUTH,
+		                              basic_auth_callback, NULL);
+		free(pdata->config_file);
 		free(pdata);
 		return rc;
 	}
@@ -609,6 +660,9 @@ int mosquitto_plugin_cleanup(void *user_data,
 	if (pdata) {
 		mosquitto_callback_unregister(pdata->identifier, MOSQ_EVT_BASIC_AUTH,
 		                              basic_auth_callback, NULL);
+		mosquitto_callback_unregister(pdata->identifier, MOSQ_EVT_RELOAD,
+		                              reload_callback, NULL);
+		free(pdata->config_file);
 		free(pdata);
 	}