diff --git a/Cargo.lock b/Cargo.lock
index edcdee8..e87a015 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -864,13 +864,14 @@ checksum = "1ecab6c735a6bb4139c0caafd0cc3635748bbb3acf4550e8138122099251f309"
 [[package]]
 name = "smoltcp"
 version = "0.8.0"
-source = "git+https://github.com/smoltcp-rs/smoltcp?branch=master#35e833e33dfd3e4efc3eb7d5de06bec17c54b011"
+source = "git+https://github.com/smoltcp-rs/smoltcp?branch=master#25c539bb7c96789270f032ede2a967cf0fe5cf57"
 dependencies = [
  "bitflags",
  "byteorder",
  "libc",
  "log",
  "managed",
+ "rand_core",
 ]
 
 [[package]]
diff --git a/src/main.rs b/src/main.rs
index bd28f96..a117a99 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -347,10 +347,10 @@ async fn virtual_tcp_interface(
     };
 
     let client_socket: anyhow::Result<TcpSocket> = {
-        static mut TCP_SERVER_RX_DATA: [u8; MAX_PACKET] = [0; MAX_PACKET];
-        static mut TCP_SERVER_TX_DATA: [u8; MAX_PACKET] = [0; MAX_PACKET];
-        let tcp_rx_buffer = TcpSocketBuffer::new(unsafe { &mut TCP_SERVER_RX_DATA[..] });
-        let tcp_tx_buffer = TcpSocketBuffer::new(unsafe { &mut TCP_SERVER_TX_DATA[..] });
+        let rx_data = vec![0u8; MAX_PACKET];
+        let tx_data = vec![0u8; MAX_PACKET];
+        let tcp_rx_buffer = TcpSocketBuffer::new(rx_data);
+        let tcp_tx_buffer = TcpSocketBuffer::new(tx_data);
         let socket = TcpSocket::new(tcp_rx_buffer, tcp_tx_buffer);
         Ok(socket)
     };