diff --git a/Cargo.toml b/Cargo.toml
index 58ce5e8d..6ee406e7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -31,7 +31,7 @@ polling = "2.8.0"
 educe = "0.6.0"
 
 libc = "0.2"
-rand = "0.8"
+rand = "0.9"
 st3 = "0.4"
 crossbeam-deque = "0.8"
 time = "0.3"
diff --git a/core/src/common/ordered_work_steal.rs b/core/src/common/ordered_work_steal.rs
index b61b34ec..29c795ac 100644
--- a/core/src/common/ordered_work_steal.rs
+++ b/core/src/common/ordered_work_steal.rs
@@ -359,7 +359,7 @@ impl<'l, T: Debug> OrderedLocalQueue<'l, T> {
             //尝试从其他本地队列steal
             let local_queues = &self.shared.local_queues;
             let num = local_queues.len();
-            let start = rand::thread_rng().gen_range(0..num);
+            let start = rand::rng().random_range(0..num);
             for i in 0..num {
                 let i = (start + i) % num;
                 if let Some(another) = local_queues.get(i) {
diff --git a/core/src/common/work_steal.rs b/core/src/common/work_steal.rs
index 170d7775..3346e45a 100644
--- a/core/src/common/work_steal.rs
+++ b/core/src/common/work_steal.rs
@@ -291,7 +291,7 @@ impl<'l, T: Debug> LocalQueue<'l, T> {
             //尝试从其他本地队列steal
             let local_queues = &self.shared.local_queues;
             let num = local_queues.len();
-            let start = rand::thread_rng().gen_range(0..num);
+            let start = rand::rng().random_range(0..num);
             for i in 0..num {
                 let i = (start + i) % num;
                 if let Some(another) = local_queues.get(i) {
diff --git a/core/src/net/event_loop.rs b/core/src/net/event_loop.rs
index 41d3f25c..21d9324a 100644
--- a/core/src/net/event_loop.rs
+++ b/core/src/net/event_loop.rs
@@ -75,7 +75,7 @@ impl DerefMut for EventLoop<'_> {
 impl Default for EventLoop<'_> {
     fn default() -> Self {
         let max_cpu_index = num_cpus::get();
-        let random_cpu_index = rand::thread_rng().gen_range(0..max_cpu_index);
+        let random_cpu_index = rand::rng().random_range(0..max_cpu_index);
         Self::new(
             format!("open-coroutine-event-loop-{random_cpu_index}"),
             random_cpu_index,
diff --git a/core/src/syscall/unix/connect.rs b/core/src/syscall/unix/connect.rs
index 14479e7f..108fdb1a 100644
--- a/core/src/syscall/unix/connect.rs
+++ b/core/src/syscall/unix/connect.rs
@@ -84,7 +84,7 @@ impl<I: ConnectSyscall> ConnectSyscall for NioConnectSyscall<I> {
                     set_errno(err);
                     r = -1;
                     break;
-                };
+                }
                 unsafe {
                     let mut address = std::mem::zeroed();
                     let mut address_len = socklen_t::try_from(size_of_val(&address)).expect("overflow");
diff --git a/core/src/syscall/windows/connect.rs b/core/src/syscall/windows/connect.rs
index 4711c61b..dbe23df3 100644
--- a/core/src/syscall/windows/connect.rs
+++ b/core/src/syscall/windows/connect.rs
@@ -82,7 +82,7 @@ impl<I: ConnectSyscall> ConnectSyscall for NioConnectSyscall<I> {
                     set_errno(err);
                     r = -1;
                     break;
-                };
+                }
                 unsafe {
                     let mut address = std::mem::zeroed();
                     let mut address_len = c_int::try_from(size_of_val(&address)).expect("overflow");