diff --git a/src/currency_core/currency_config.h b/src/currency_core/currency_config.h
index 791033bf..37cdd8f1 100644
--- a/src/currency_core/currency_config.h
+++ b/src/currency_core/currency_config.h
@@ -219,7 +219,7 @@
 #define BLOCK_MINOR_VERSION_GENESIS                     0
 #define BLOCK_MAJOR_VERSION_INITAL                      0
 #ifndef TESTNET
-#define ZANO_HARDFORK_1_AFTER_HEIGHT                    180840
+#define ZANO_HARDFORK_1_AFTER_HEIGHT                    186247
 #else
 #define ZANO_HARDFORK_1_AFTER_HEIGHT                    1440
 #endif