diff --git a/src/chains/mainnet/bitcanna.json b/src/chains/mainnet/bitcanna.json
index 1b8ada08..ac40684f 100644
--- a/src/chains/mainnet/bitcanna.json
+++ b/src/chains/mainnet/bitcanna.json
@@ -1,8 +1,8 @@
 {
     "chain_name": "bitcanna",
     "coingecko": "bitcanna", 
-    "api": ["https://lcd.bitcanna.io", "https://bitcannaapi.panthea.eu"], 
-    "rpc": ["https://rpc.bitcanna.io:443", "https://rpc.bitcanna.ezstaking.io:443", "https://bitcannarpc.panthea.eu:443"],
+    "api": ["https://lcd.bitcanna.io"], 
+    "rpc": ["https://rpc.bitcanna.io:443", "https://rpc.bitcanna.ezstaking.io:443"],
     "sdk_version": "0.45.1",
     "coin_type": "118",
     "min_tx_fee": "8000",
diff --git a/src/chains/mainnet/cerberus.json b/src/chains/mainnet/cerberus.json
index 06fa521f..be4337f4 100644
--- a/src/chains/mainnet/cerberus.json
+++ b/src/chains/mainnet/cerberus.json
@@ -1,8 +1,8 @@
 {
   "chain_name": "cerberus",
   "coingecko": "cerberus",
-  "api": ["https://api.cerberus.zone:1317", "https://cerberusapi.panthea.eu"],
-  "rpc": ["https://rpc.cerberus.zone:26657", "https://rpc-cerberus.ecostake.com:443", "https://cerberusrpc.panthea.eu:443"],
+  "api": ["https://api.cerberus.zone:1317"],
+  "rpc": ["https://rpc.cerberus.zone:26657", "https://rpc-cerberus.ecostake.com:443"],
   "snapshot_provider": "",
   "sdk_version": "0.44.5",
   "coin_type": "118",
diff --git a/src/chains/mainnet/desmos.json b/src/chains/mainnet/desmos.json
index b2193707..3b8f2326 100644
--- a/src/chains/mainnet/desmos.json
+++ b/src/chains/mainnet/desmos.json
@@ -1,8 +1,8 @@
 {
     "chain_name": "desmos",
     "coingecko": "desmos",
-    "api": ["https://desmosapi.panthea.eu", "https://api.mainnet.desmos.network", "https://desmos.api.ping.pub"],
-    "rpc": ["https://desmosrpc.panthea.eu:443", "https://rpc.mainnet.desmos.network:443"],
+    "api": ["https://api.mainnet.desmos.network", "https://desmos.api.ping.pub"],
+    "rpc": ["https://rpc.mainnet.desmos.network:443"],
     "snapshot_provider": "05d15d195cd40a1d20f937a87a63fbb3ec1a4b80@desmos.rpc.ping.pub:26656",
     "sdk_version": "0.44.4",
     "coin_type": "852",
diff --git a/src/chains/mainnet/passage.json b/src/chains/mainnet/passage.json
index 6fa7071c..98fedec7 100644
--- a/src/chains/mainnet/passage.json
+++ b/src/chains/mainnet/passage.json
@@ -1,7 +1,7 @@
 {
   "chain_name": "passage",
-  "api": ["https://passage-api.polkachu.com", "https://passageapi.panthea.eu"],
-  "rpc": ["https://passage-rpc.polkachu.com:443", "https://passagerpc.panthea.eu:443"],
+  "api": ["https://passage-api.polkachu.com"],
+  "rpc": ["https://passage-rpc.polkachu.com:443"],
   "snapshot_provider": "",
   "sdk_version": "0.45.5",
   "coin_type": "118",
diff --git a/src/chains/mainnet/shentu.json b/src/chains/mainnet/shentu.json
index d70113c8..124e295b 100644
--- a/src/chains/mainnet/shentu.json
+++ b/src/chains/mainnet/shentu.json
@@ -2,8 +2,8 @@
 {
     "chain_name": "shentu",
     "coingecko": "certik",
-    "api": ["https://chainfull.noopsbycertik.com", "https://shentuapi.panthea.eu"],
-    "rpc": ["https://shenturpc.panthea.eu:443", "https://shenturpc.panthea.eu:443"],
+    "api": ["https://chainfull.noopsbycertik.com"],
+    "rpc": "",
     "snapshot_provider": "",
     "sdk_version": "0.44.3",
     "coin_type": "118",
diff --git a/src/chains/testnet/cerberus.json b/src/chains/testnet/cerberus.json
new file mode 100644
index 00000000..d59c52d6
--- /dev/null
+++ b/src/chains/testnet/cerberus.json
@@ -0,0 +1,21 @@
+{
+  "chain_name": "cerberus",
+  "coingecko": "cerberus",
+  "api": ["https://cerberus-testnet-api.polkachu.com"],
+  "rpc": ["https://cerberus-testnet-rpc.polkachu.com"],
+  "snapshot_provider": "",
+  "sdk_version": "0.44.5",
+  "coin_type": "118",
+  "min_tx_fee": "5000",
+  "addr_prefix": "cerberus",
+  "logo": "/logos/cerberus.png",
+  "assets": [
+    {
+      "base": "ucrbrus",
+      "symbol": "CRBRUS",
+      "exponent": "6",
+      "coingecko_id": "cerberus-2",
+      "logo": "/logos/cerberus.png"
+    }
+  ]
+}
diff --git a/src/chains/testnet/chihuahua.json b/src/chains/testnet/chihuahua.json
new file mode 100644
index 00000000..8d184d99
--- /dev/null
+++ b/src/chains/testnet/chihuahua.json
@@ -0,0 +1,20 @@
+{
+  "chain_name": "chihuahua",
+  "coingecko": "",
+  "api": ["https://chihuahua-testnet-api.polkachu.com"],
+  "rpc": ["https://chihuahua-testnet-rpc.polkachu.com"],
+  "sdk_version": "0.44.3",
+  "coin_type": "118",
+  "min_tx_fee": "8000",
+  "addr_prefix": "chihuahua",
+  "logo": "/logos/chihuahua.png",
+  "assets": [
+    {
+      "base": "uhuahua",
+      "symbol": "HUAHUA",
+      "exponent": "6",
+      "coingecko_id": "",
+      "logo": "/logos/chihuahua.png"
+    }
+  ]
+}
diff --git a/yarn.lock b/yarn.lock
index 1d420a2a..c212e569 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2377,18 +2377,18 @@
     link-module-alias "^1.2.0"
     shx "^0.3.4"
 
-"@tharsis/eip712@^0.2.2":
-  version "0.2.2"
-  resolved "https://registry.yarnpkg.com/@tharsis/eip712/-/eip712-0.2.2.tgz#1b458433bfe153e49e2dd9eecff55a373804296f"
-  integrity sha512-NRCMEGLAeddrRi0orWPRDiwtXt2089prodlpT23jxUKaLrdDxE9JFjXWo25BUxjflftsh39BTXXVwTWnwCJgDA==
+"@tharsis/eip712@^0.2.3":
+  version "0.2.3"
+  resolved "https://registry.yarnpkg.com/@tharsis/eip712/-/eip712-0.2.3.tgz#fc6dde7abbe023a4a2f65ce7cb0b1912ce3119a1"
+  integrity sha512-SZ8TKqzDcUe8973oTzmHU1iUd25gCY9gpmrmWkxB7kIaaJPJ4iIwT4Q9Tct70Q5bZm5djoIkRt1E5vYbjxohjQ==
   dependencies:
     link-module-alias "^1.2.0"
     shx "^0.3.4"
 
-"@tharsis/proto@^0.1.17":
-  version "0.1.17"
-  resolved "https://registry.yarnpkg.com/@tharsis/proto/-/proto-0.1.17.tgz#c8f2285ddd94a4eb111152dffae7221f82a258bb"
-  integrity sha512-v3pQ8Bleuqtrw0dSWkL1KNbjglFGL336jPhdE/HtC+zlvY0ux7D4gHc+TnEo2A0m+ZGDxAqHqWd8+8zs+MBCzQ==
+"@tharsis/proto@^0.1.19":
+  version "0.1.19"
+  resolved "https://registry.yarnpkg.com/@tharsis/proto/-/proto-0.1.19.tgz#d80a116ba56db1795b328bcc35207c18e3a8c59d"
+  integrity sha512-x/pMSEUSL7aAUTmI0pJcbSMnl9D7lYHh/NHwjs1wiLVcOXbHCgMYPuqTkVC82sZcOKz9CmF2vfrS3EapWIsONQ==
   dependencies:
     "@types/google-protobuf" "^3.15.5"
     "@types/node" "^17.0.21"
@@ -2397,13 +2397,13 @@
     sha3 "^2.1.4"
     shx "^0.3.4"
 
-"@tharsis/transactions@^0.2.3":
-  version "0.2.3"
-  resolved "https://registry.yarnpkg.com/@tharsis/transactions/-/transactions-0.2.3.tgz#b18bc2c4ed1e3d43e6adfa2ca1376e81bb6ced40"
-  integrity sha512-RXm2LWrHclSg+cGju+1REIrYf4TsBi1WlME5XjaEPwW7Uo1b6CUfqd3lSfoWWzE5xoc5D7q5apC+yu2xUSJzag==
+"@tharsis/transactions@^0.2.5":
+  version "0.2.5"
+  resolved "https://registry.yarnpkg.com/@tharsis/transactions/-/transactions-0.2.5.tgz#0dd4f206565e924aa7e2e08e9668f6795a421bb2"
+  integrity sha512-0Vm6wU6UmTnmCkd1Rd1Y63S/EEWSqobEQZx4t9dbb6rzHBghax6EvMlizNOssl+kWOt4EWnLjuKER51gkXLqBQ==
   dependencies:
-    "@tharsis/eip712" "^0.2.2"
-    "@tharsis/proto" "^0.1.17"
+    "@tharsis/eip712" "^0.2.3"
+    "@tharsis/proto" "^0.1.19"
     "@types/node" "^17.0.21"
     link-module-alias "^1.2.0"
     shx "^0.3.4"