diff --git a/pgdog/src/frontend/router/sharding/hasher.rs b/pgdog/src/frontend/router/sharding/hasher.rs
index 78bc4183a..4121fefc2 100644
--- a/pgdog/src/frontend/router/sharding/hasher.rs
+++ b/pgdog/src/frontend/router/sharding/hasher.rs
@@ -38,10 +38,7 @@ impl Hasher {
         hasher.update(bytes);
         let hash = hasher.finalize();
 
-        let hex = format!("{:x}", hash);
-        let key = i64::from_str_radix(&hex[hex.len() - 8..], 16).unwrap();
-
-        key as u64
+        u32::from_be_bytes([hash[16], hash[17], hash[18], hash[19]]) as u64
     }
 }