diff --git a/crates/node/src/network/handshake.rs b/crates/node/src/network/handshake.rs
index f72e7c7700..af1f9258f4 100644
--- a/crates/node/src/network/handshake.rs
+++ b/crates/node/src/network/handshake.rs
@@ -24,7 +24,7 @@ pub async fn p2p_handshake<T: AsyncRead + AsyncWrite + Unpin>(
         }
 
         let other_protocol_version = u32::from_be_bytes(other_handshake[1..].try_into().unwrap());
-        if other_protocol_version != MPC_PROTOCOL_VERSION {
+        if other_protocol_version < MPC_PROTOCOL_VERSION {
             anyhow::bail!(
                 "Incompatible protocol version; we have {}, they have {}",
                 MPC_PROTOCOL_VERSION,
@@ -61,20 +61,32 @@ mod tests {
     }
 
     #[tokio::test]
-    async fn test_p2p_handshake_different_version() {
+    async fn test_p2p_handshake_accept_higher_version() {
         let (a, mut b) = tokio::io::duplex(1024);
+        let new_version = MPC_PROTOCOL_VERSION + 1;
         let a_result = do_handshake(a);
         let mut buf = [0u8; 5];
         b.read_exact(&mut buf).await.unwrap();
-        buf[1..].copy_from_slice(&(MPC_PROTOCOL_VERSION + 1).to_be_bytes());
+        buf[1..].copy_from_slice(&(new_version).to_be_bytes());
+        b.write_all(&buf).await.unwrap();
+        a_result.await.unwrap();
+    }
+
+    #[tokio::test]
+    async fn test_p2p_handshake_reject_lower_version() {
+        let (a, mut b) = tokio::io::duplex(1024);
+        let a_result = do_handshake(a);
+        let mut buf = [0u8; 5];
+        let old_version = MPC_PROTOCOL_VERSION - 1;
+        b.read_exact(&mut buf).await.unwrap();
+        buf[1..].copy_from_slice(&(old_version).to_be_bytes());
         b.write_all(&buf).await.unwrap();
         let err = a_result.await.unwrap_err();
         assert_eq!(
             err.to_string(),
             format!(
                 "Incompatible protocol version; we have {}, they have {}",
-                MPC_PROTOCOL_VERSION,
-                MPC_PROTOCOL_VERSION + 1
+                MPC_PROTOCOL_VERSION, old_version
             )
         );
     }