diff --git a/crypto-crawler/Cargo.toml b/crypto-crawler/Cargo.toml
index 445abdb1..919ee0d2 100644
--- a/crypto-crawler/Cargo.toml
+++ b/crypto-crawler/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "crypto-crawler"
-version = "4.5.4"
+version = "4.5.5"
 authors = ["soulmachine <soulmachine@gmail.com>"]
 edition = "2021"
 description   = "A rock-solid cryprocurrency crawler."
@@ -11,19 +11,19 @@ keywords = ["cryptocurrency", "blockchain", "trading"]
 [dependencies]
 crypto-markets = "1.3.2"
 crypto-market-type = "1.1.1"
-crypto-msg-parser = "2.6.5"
+crypto-msg-parser = "2.6.6"
 crypto-msg-type = "1.0.8"
 crypto-pair = "2.2.12"
-crypto-rest-client = "0.9.4"
+crypto-rest-client = "0.9.5"
 crypto-ws-client = "4.11.8"
 fslock = "0.2.1"
 once_cell = "1.13.0"
 log = "0.4.17"
 rand = "0.8.5"
 reqwest = { version = "0.11.11", features = ["blocking", "gzip"] }
-serde = { version = "1.0.138", features = ["derive"] }
+serde = { version = "1.0.139", features = ["derive"] }
 serde_json = "1.0.82"
-tokio = { version = "1.19.2", features = ["macros", "rt-multi-thread", "sync", "time"] }
+tokio = { version = "1.20.0", features = ["macros", "rt-multi-thread", "sync", "time"] }
 
 [dev_dependencies]
 env_logger = "0.9"
diff --git a/crypto-msg-parser/tests/okx_v3.rs b/crypto-msg-parser/tests/okx_v3.rs
index 70fdbf5b..d9ad5488 100644
--- a/crypto-msg-parser/tests/okx_v3.rs
+++ b/crypto-msg-parser/tests/okx_v3.rs
@@ -176,8 +176,8 @@ mod trade {
                 .unwrap()
         );
 
-        assert_eq!(trade.quantity_base, 0.1 * 4.0);
-        assert_eq!(trade.quantity_quote, 0.1 * 4.0 * 0.1545);
+        assert_eq!(trade.quantity_base, 1.0 * 4.0);
+        assert_eq!(trade.quantity_quote, 1.0 * 4.0 * 0.1545);
         assert_eq!(trade.quantity_contract, Some(4.0));
         assert_eq!(trade.side, TradeSide::Buy);
 
@@ -202,8 +202,8 @@ mod trade {
                 .unwrap()
         );
 
-        assert_eq!(trade.quantity_base, 0.1 * 10.0);
-        assert_eq!(trade.quantity_quote, 0.1 * 10.0 * 0.0255);
+        assert_eq!(trade.quantity_base, 1.0 * 10.0);
+        assert_eq!(trade.quantity_quote, 1.0 * 10.0 * 0.0255);
         assert_eq!(trade.quantity_contract, Some(10.0));
         assert_eq!(trade.side, TradeSide::Sell);
     }
@@ -481,8 +481,8 @@ mod l2_event {
         assert_eq!(orderbook.timestamp, 1622726335745);
 
         assert_eq!(orderbook.asks[0].price, 0.0015);
-        assert_eq!(orderbook.asks[0].quantity_base, 0.1 * 906.0);
-        assert_eq!(orderbook.asks[0].quantity_quote, 0.1 * 906.0 * 0.0015);
+        assert_eq!(orderbook.asks[0].quantity_base, 1.0 * 906.0);
+        assert_eq!(orderbook.asks[0].quantity_quote, 1.0 * 906.0 * 0.0015);
         assert_eq!(orderbook.asks[0].quantity_contract.unwrap(), 906.0);
     }
 }
diff --git a/crypto-rest-client/Cargo.toml b/crypto-rest-client/Cargo.toml
index a8e3db81..72cfaa19 100644
--- a/crypto-rest-client/Cargo.toml
+++ b/crypto-rest-client/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "crypto-rest-client"
-version = "0.9.4"
+version = "0.9.5"
 authors = ["soulmachine <soulmachine@gmail.com>"]
 edition = "2021"
 description   = "An RESTful client for all cryptocurrency exchanges."
diff --git a/crypto-rest-client/src/exchanges/zb/zb_spot.rs b/crypto-rest-client/src/exchanges/zb/zb_spot.rs
index 5dc08ae0..1cc42007 100644
--- a/crypto-rest-client/src/exchanges/zb/zb_spot.rs
+++ b/crypto-rest-client/src/exchanges/zb/zb_spot.rs
@@ -2,7 +2,7 @@ use super::super::utils::http_get;
 use crate::error::Result;
 use std::collections::BTreeMap;
 
-const BASE_URL: &str = "https://api.zbex.site";
+const BASE_URL: &str = "https://api.zb.com";
 
 /// The RESTful client for ZB spot market.
 ///