diff --git a/src/currency_core/currency_config.h b/src/currency_core/currency_config.h
index 4cc1406a..a622b08b 100644
--- a/src/currency_core/currency_config.h
+++ b/src/currency_core/currency_config.h
@@ -10,7 +10,7 @@
 #ifndef TESTNET
 #define CURRENCY_FORMATION_VERSION                      84
 #else
-#define CURRENCY_FORMATION_VERSION                      90
+#define CURRENCY_FORMATION_VERSION                      91
 #endif
 
 #define CURRENCY_GENESIS_NONCE                          (CURRENCY_FORMATION_VERSION + 101011010121) //bender's nightmare