diff --git a/src/filesystem.h b/src/filesystem.h
index 17d4404..8792e42 100644
--- a/src/filesystem.h
+++ b/src/filesystem.h
@@ -27,7 +27,7 @@ char* generateRandomString(int length) {
 void saveFileSystem(){
     Serial.println(F("Saving config"));
 
-    StaticJsonDocument<1024> json;//512
+    JsonDocument json;//512
     json["brightness"] = printerConfig.brightness;
     json["printerIp"] = printerConfig.printerIP;
     json["accessCode"] = printerConfig.accessCode;
@@ -81,7 +81,7 @@ void loadFileSystem(){
     std::unique_ptr<char[]> buf(new char[size]);
     configFile.readBytes(buf.get(), size);
 
-    StaticJsonDocument<1024> json; //512
+    JsonDocument json; //512
 
     auto deserializeError = deserializeJson(json, buf.get());
 
diff --git a/src/mqttmanager.h b/src/mqttmanager.h
index 1299520..d4d7759 100644
--- a/src/mqttmanager.h
+++ b/src/mqttmanager.h
@@ -4,7 +4,7 @@
 #include <Arduino.h>
 #include <WiFi.h>
 static int mqttbuffer = 32768;
-static int mqttdocument = 16384;
+//static int mqttdocument = 16384;
 
 #include <WiFiClientSecure.h>
 #include <PubSubClient.h>
@@ -137,9 +137,9 @@ void ParseCallback(JsonDocument &messageobject){
     }
 }
 
-StaticJsonDocument<64> getMqttPayloadFilter()
+    JsonDocument getMqttPayloadFilter()
 {
-    StaticJsonDocument<64> filter;
+    JsonDocument filter;
     filter["print"]["stg_cur"] = true;
     filter["print"]["gcode_state"] = true;
     filter["print"]["lights_report"] = true;
@@ -149,7 +149,7 @@ StaticJsonDocument<64> getMqttPayloadFilter()
 }
 
 void mqttCallback(char *topic, byte *payload, unsigned int length){
-    DynamicJsonDocument messageobject(mqttdocument);
+    JsonDocument messageobject;
     
     auto deserializeError = deserializeJson(messageobject, payload, length, DeserializationOption::Filter(getMqttPayloadFilter()));
     if (!deserializeError){
diff --git a/src/serialmanager.h b/src/serialmanager.h
index 1f4a6ef..6fa294b 100644
--- a/src/serialmanager.h
+++ b/src/serialmanager.h
@@ -14,7 +14,7 @@ void setupSerial(){
 void serialLoop(){
     if (Serial.available() > 0) {
         String input = Serial.readStringUntil('\n');
-        DynamicJsonDocument doc(256);
+        JsonDocument doc;
         deserializeJson(doc, input);
        if (doc.containsKey("ssid") && doc.containsKey("pass")) {
             Serial.print("SSID ");
diff --git a/src/web-server.h b/src/web-server.h
index 7212ba0..2bc23a0 100644
--- a/src/web-server.h
+++ b/src/web-server.h
@@ -55,7 +55,7 @@ void handleGetConfig(){
         return;
     }
 
-    DynamicJsonDocument doc(300);
+    JsonDocument doc;
     doc["brightness"] = printerConfig.brightness;
     doc["turbo"] = printerConfig.turbo;
     doc["ip"] = printerConfig.printerIP;
@@ -77,7 +77,7 @@ void handleGetConfig(){
 }
 
 void setupWebserver(){
-    if (!MDNS.begin(globalVariables.Host)) {
+    if (!MDNS.begin(globalVariables.Host.c_str())) {
         Serial.println(F("Error setting up MDNS responder!"));
         while (1) {
         delay(1000);