--- a/runtime/src/lib.rs
+++ b/runtime/src/lib.rs
@@ -154,7 +154,7 @@
 	transaction_version: 1,
 };
 
-pub const MILLISECS_PER_BLOCK: u64 = 1200;
+pub const MILLISECS_PER_BLOCK: u64 = 12000;
 
 pub const SLOT_DURATION: u64 = MILLISECS_PER_BLOCK;