diff --git a/kernel/src/interrupt/timer.rs b/kernel/src/interrupt/timer.rs
index ad4a055f9876ba054f2d8b88691d9bde8f1ddb53..0931a78d34ee039bec133cadee2a88229d368c3d 100644
--- a/kernel/src/interrupt/timer.rs
+++ b/kernel/src/interrupt/timer.rs
@@ -7,13 +7,13 @@ const CLOCK_FREQ: usize = 1250000;
 
 #[cfg(feature = "board_k210")]
 // const CLOCK_FREQ: usize = 4030000000 / 62;
-const CLOCK_FREQ: usize = 403000000 / 248;
+const CLOCK_FREQ: usize = 403000000 / 250;
 
 const CHANGE_TASK_TICKS: usize = 10;
 
 // const INTERVAL: usize = CLOCK_FREQ / 100;
 // const INTERVAL: usize = CLOCK_FREQ / 25;
-const INTERVAL: usize = CLOCK_FREQ * 248;
+const INTERVAL: usize = CLOCK_FREQ * 250;
 
 const MSEC_PER_SEC: usize = 1000;
 const NSEC_PER_SEC: usize = 1_000_000_000;