diff --git a/_data/chains/eip155-42261.json b/_data/chains/eip155-42261.json
index 6b620b7a..07879731 100644
--- a/_data/chains/eip155-42261.json
+++ b/_data/chains/eip155-42261.json
@@ -20,6 +20,6 @@
   "explorers": [{
     "name": "Emerald Paratime Testnet Explorer",
     "url": "https://testnet.explorer.emerald.oasis.dev/",
-    "standard": "none"
+    "standard": "EIP3091"
   }]
 }
diff --git a/_data/chains/eip155-42262.json b/_data/chains/eip155-42262.json
index e606b39c..c30628f9 100644
--- a/_data/chains/eip155-42262.json
+++ b/_data/chains/eip155-42262.json
@@ -20,6 +20,6 @@
   "explorers": [{
     "name": "Emerald Paratime Mainnet Explorer",
     "url": "https://explorer.emerald.oasis.dev/",
-    "standard": "none"
+    "standard": "EIP3091"
   }]
 }