diff --git a/Software/src/common.h b/Software/src/common.h
index 1eda6b7..ece0342 100644
--- a/Software/src/common.h
+++ b/Software/src/common.h
@@ -26,8 +26,8 @@
 #define HOST_NAME "ChainLube_%06X" // Use printf-Formatting - Chip-ID (uin32_t) will be added
 #endif
 
-#define SW_VERSION 1.3
-#define FLASH_FS_VERSION 1.3
+#define SW_VERSION 1.4
+#define FLASH_FS_VERSION 1.4
 
 #ifndef OTA_DELAY
 #define OTA_DELAY 50 // ticks -> 10ms / tick
diff --git a/Software/src/config.h b/Software/src/config.h
index 3ec1b7e..b0bd76e 100644
--- a/Software/src/config.h
+++ b/Software/src/config.h
@@ -8,7 +8,11 @@
 #include "dtc.h"
 #include "common.h"
 
+#if PCB_REV == 1 || PCB_REV == 2 || PCB_REV == 3
+#define EEPROM_SIZE_BYTES I2C_DEVICESIZE_24LC64
+#elif PCB_REV == 4
 #define EEPROM_SIZE_BYTES I2C_DEVICESIZE_24LC256
+#endif
 
 typedef enum SpeedSource_e
 {