diff --git a/_data/chains/eip155-34000.json b/_data/chains/eip155-3400.json
similarity index 91%
rename from _data/chains/eip155-34000.json
rename to _data/chains/eip155-3400.json
index 7445f77e..d4df1cd8 100644
--- a/_data/chains/eip155-34000.json
+++ b/_data/chains/eip155-3400.json
@@ -13,8 +13,8 @@
   },
   "infoURL": "https://net.paribu.com",
   "shortName": "prb",
-  "chainId": 34000,
-  "networkId": 34000,
+  "chainId": 3400,
+  "networkId": 3400,
   "icon": "prb",
   "explorers": [{
     "name": "Paribu Net Explorer",
diff --git a/_data/chains/eip155-35000.json b/_data/chains/eip155-3500.json
similarity index 92%
rename from _data/chains/eip155-35000.json
rename to _data/chains/eip155-3500.json
index b172923c..344a2687 100644
--- a/_data/chains/eip155-35000.json
+++ b/_data/chains/eip155-3500.json
@@ -13,8 +13,8 @@
   },
   "infoURL": "https://net.paribu.com",
   "shortName": "prbtestnet",
-  "chainId": 35000,
-  "networkId": 35000,
+  "chainId": 3500,
+  "networkId": 3500,
   "icon": "prb",
   "explorers": [{
     "name": "Paribu Net Testnet Explorer",