diff --git a/src/state/user/hooks.ts b/src/state/user/hooks.ts
index f260468..179eff6 100644
--- a/src/state/user/hooks.ts
+++ b/src/state/user/hooks.ts
@@ -126,7 +126,7 @@ export function useUpdateTotalSeconds() {
   const contract = useMasterNodeContract()
   const dispatch = useAppDispatch()
   const offset = 100800
-  const blockTime = 16
+  const blockTime = 15
 
   return useCallback(async () => {