diff --git a/include/NetworkSettings.h b/include/NetworkSettings.h
index ec08a93..7f699bd 100644
--- a/include/NetworkSettings.h
+++ b/include/NetworkSettings.h
@@ -68,7 +68,7 @@ private:
     int adminTimeoutCounter = 0;
     int connectTimeoutTimer = 0;
     int connectRedoTimer = 0;
-    unsigned long lastTimerCall = 0;
+    uint32_t lastTimerCall = 0;
     const byte DNS_PORT = 53;
     IPAddress apIp;
     IPAddress apNetmask;
diff --git a/include/WebApi_ws_live.h b/include/WebApi_ws_live.h
index 631aaaa..d21f376 100644
--- a/include/WebApi_ws_live.h
+++ b/include/WebApi_ws_live.h
@@ -22,6 +22,6 @@ private:
 
     uint32_t _lastWsPublish = 0;
     uint32_t _lastInvUpdateCheck = 0;
-    unsigned long _lastWsCleanup = 0;
+    uint32_t _lastWsCleanup = 0;
     uint32_t _newestInverterTimestamp = 0;
 };
\ No newline at end of file