diff --git a/Marlin/Configuration.h b/Marlin/Configuration.h
index 1d387e3..e669de4 100644
--- a/Marlin/Configuration.h
+++ b/Marlin/Configuration.h
@@ -555,14 +555,14 @@
 // Above this temperature the heater will be switched off.
 // This can protect components from overheating, but NOT from shorts and failures.
 // (Use MINTEMP for thermistor short/failure protection.)
-#define HEATER_0_MAXTEMP 275
-#define HEATER_1_MAXTEMP 275
-#define HEATER_2_MAXTEMP 275
-#define HEATER_3_MAXTEMP 275
-#define HEATER_4_MAXTEMP 275
-#define HEATER_5_MAXTEMP 275
-#define HEATER_6_MAXTEMP 275
-#define HEATER_7_MAXTEMP 275
+#define HEATER_0_MAXTEMP 300
+#define HEATER_1_MAXTEMP 300
+#define HEATER_2_MAXTEMP 300
+#define HEATER_3_MAXTEMP 300
+#define HEATER_4_MAXTEMP 300
+#define HEATER_5_MAXTEMP 300
+#define HEATER_6_MAXTEMP 300
+#define HEATER_7_MAXTEMP 300
 #define BED_MAXTEMP      150
 #define CHAMBER_MAXTEMP  60