diff --git a/_data/chains/eip155-188.json b/_data/chains/eip155-188.json
new file mode 100644
index 00000000..1fcdc2ca
--- /dev/null
+++ b/_data/chains/eip155-188.json
@@ -0,0 +1,23 @@
+{
+  "name": "BMC Mainnet",
+  "chain": "BMC",
+  "network": "mainnet",
+  "rpc": [
+    "https://mainnet.bmcchain.com/"
+  ],
+  "faucets": [],
+  "nativeCurrency": {
+    "name": "BTM",
+    "symbol": "BTM",
+    "decimals": 18
+  },
+  "infoURL": "https://bmc.bytom.io/",
+  "shortName": "BMC",
+  "chainId": 188,
+  "networkId": 188,
+  "explorers": [{
+    "name": "Blockmeta",
+    "url": "https://bmc.blockmeta.com/",
+    "standard": "none"
+  }]
+}
diff --git a/_data/chains/eip155-2021121117.json b/_data/chains/eip155-2021121117.json
new file mode 100644
index 00000000..679a56bb
--- /dev/null
+++ b/_data/chains/eip155-2021121117.json
@@ -0,0 +1,18 @@
+{
+  "name": "DataHopper",
+  "chain": "HOP",
+  "network": "hopnet",
+  "rpc": [
+    "https://23.92.21.121:8545"
+  ],
+  "faucets": [],
+  "nativeCurrency": {
+    "name": "DataHoppers",
+    "symbol": "HOP",
+    "decimals": 18
+  },
+  "infoURL": "https://www.DataHopper.com",
+  "shortName": "hop",
+  "chainId": 2021121117,
+  "networkId": 2021121117
+}
diff --git a/_data/chains/eip155-52.json b/_data/chains/eip155-52.json
index a006f959..7a718629 100644
--- a/_data/chains/eip155-52.json
+++ b/_data/chains/eip155-52.json
@@ -3,7 +3,7 @@
   "chain": "CSC",
   "network": "mainnet",
   "rpc": [
-    "https://rpc-mainnet.coinex.net"
+    "https://rpc.coinex.net"
   ],
   "faucets": [],
   "nativeCurrency": {
@@ -14,5 +14,10 @@
   "infoURL": "https://www.coinex.org/",
   "shortName": "cet",
   "chainId": 52,
-  "networkId": 52
+  "networkId": 52,
+  "explorers": [{
+    "name": "coinexscan",
+    "url": "https://www.coinex.net/",
+    "standard": "none"
+  }]
 }
diff --git a/_data/chains/eip155-53.json b/_data/chains/eip155-53.json
index 490e1bb8..c448f6b0 100644
--- a/_data/chains/eip155-53.json
+++ b/_data/chains/eip155-53.json
@@ -3,7 +3,7 @@
   "chain": "CSC",
   "network": "testnet",
   "rpc": [
-    "https://rpc-testnet.coinex.net"
+    "https://testnet-rpc.coinex.net/"
   ],
   "faucets": [],
   "nativeCurrency": {
@@ -14,5 +14,10 @@
   "infoURL": "https://www.coinex.org/",
   "shortName": "tcet",
   "chainId": 53,
-  "networkId": 53
+  "networkId": 53,
+  "explorers": [{
+  "name": "coinexscan",
+  "url": "https://testnet.coinex.net/",
+  "standard": "none"
+  }]
 }
diff --git a/_data/chains/eip155-7878.json b/_data/chains/eip155-7878.json
index 792f840f..53a9ddf0 100644
--- a/_data/chains/eip155-7878.json
+++ b/_data/chains/eip155-7878.json
@@ -2,22 +2,25 @@
   "name": "Hazlor Testnet",
   "chain": "SCAS",
   "network": "testnet",
-  "rpc": ["https://hatlas.rpc.hazlor.com:8545/"],
-  "faucets": ["https://faucet.hazlor.com"],
+  "rpc": [
+    "https://hatlas.rpc.hazlor.com:8545",
+    "wss://hatlas.rpc.hazlor.com:8546"
+  ],
+  "faucets": [
+    "https://faucet.hazlor.com"
+  ],
   "nativeCurrency": {
     "name": "Hazlor Test Coin",
     "symbol": "TSCAS",
     "decimals": 18
   },
   "infoURL": "https://hazlor.com",
-  "shortName": "hazlor-hatlas",
+  "shortName": "tscas",
   "chainId": 7878,
   "networkId": 7878,
-  "explorers": [
-    {
-      "name": "Hazlor Explorer ",
-      "url": "https://explorer.hazlor.com",
-      "standard": "none"
-    }
-  ]
+  "explorers": [{
+    "name": "Hazlor Testnet Explorer",
+    "url": "https://explorer.hazlor.com",
+    "standard": "none"
+  }]
 }
diff --git a/build.gradle b/build.gradle
index 36cf31a6..a21c77e8 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,7 +1,7 @@
 buildscript {
     ext {
-        KOTLIN_VERSION = "1.6.0"
-        KETHEREUM_VERSION = "0.85.3"
+        KOTLIN_VERSION = "1.6.10"
+        KETHEREUM_VERSION = "0.85.5"
     }
 
     repositories {