diff --git a/blob/ch.bin b/blob/ch.bin
index 6d4277a..b39388b 100755
Binary files a/blob/ch.bin and b/blob/ch.bin differ
diff --git a/debian/changelog b/debian/changelog
index 26c8c79..520004b 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+matrixio-creator-init (0.4.13) unstable; urgency=medium
+
+  * Bug Fix: Error in humidity calculation in MCU firmware
+
+ --  Yoel Ramos <yoel.castillo@admobilize.com>  Thu, 20 Jul 2018 15:00:00 +0000
+
 matrixio-creator-init (0.4.12) unstable; urgency=medium
 
   * GPIO Core MATRIX Voice
diff --git a/mcu_firmware.version b/mcu_firmware.version
index fab8bc6..c60764d 100644
--- a/mcu_firmware.version
+++ b/mcu_firmware.version
@@ -1,2 +1,2 @@
 MCU ID = 0x10
-MCU version = 0x180403
+MCU version = 0x180720