diff --git a/src/cryptonote_config.h b/src/cryptonote_config.h
index 44bec52..72536d0 100644
--- a/src/cryptonote_config.h
+++ b/src/cryptonote_config.h
@@ -67,7 +67,7 @@
 #define ORPHANED_BLOCKS_MAX_COUNT                       100
 
 
-#define DIFFICULTY_TARGET                               120   // seconds
+#define DIFFICULTY_TARGET                               240   // seconds
 #define DIFFICULTY_WINDOW                               720 // blocks
 #define DIFFICULTY_LAG                                  15  // !!!
 #define DIFFICULTY_CUT                                  60  // timestamps to cut after sorting