diff --git a/GITHUB_SHA.h b/GITHUB_SHA.h
index 1024a4f..b1c3d8f 100644
--- a/GITHUB_SHA.h
+++ b/GITHUB_SHA.h
@@ -1 +1 @@
-#define GITHUB_SHA "devel-202501092043Z"
+#define GITHUB_SHA "devel-202501171827Z"
diff --git a/version.h b/version.h
index b15e3d2..2ba389b 100644
--- a/version.h
+++ b/version.h
@@ -3,7 +3,8 @@
 
 #include "StringFormatter.h"
 
-#define VERSION "5.5.6"
+#define VERSION "5.5.7"
+// 5.5.7  - ESP32 bugfix packet buffer race (as 5.4.1)
 // 5.5.6  - Fix ESP32 build bug caused by include reference loop
 // 5.5.5  - Railcom implementation with IO_I2CRailcom driver
 //        - response analysis and block management.