diff --git a/stm32/Makefile b/stm32/Makefile
index 88055b5f..6e106870 100644
--- a/stm32/Makefile
+++ b/stm32/Makefile
@@ -34,7 +34,7 @@ BOOTLOADER_BASE = 0x08000000
 FILESYSTEM_BASE = 0x080e0000
 
 # Our version for this release.
-VERSION_STRING = 4.1.5
+VERSION_STRING = 4.1.6
 
 #
 # Sign and merge various parts