diff --git a/_data/chains/eip155-201030.json b/_data/chains/eip155-201030.json
index 59974fff..9892acc3 100644
--- a/_data/chains/eip155-201030.json
+++ b/_data/chains/eip155-201030.json
@@ -22,7 +22,7 @@
   "explorers": [
     {
       "name": "alaya explorer",
-      "url": "devnetscan.alaya.network",
+      "url": "https://devnetscan.alaya.network",
       "standard": "none"
     }
   ]
diff --git a/_data/chains/eip155-210309.json b/_data/chains/eip155-210309.json
index 89f51fb0..83dfb8fb 100644
--- a/_data/chains/eip155-210309.json
+++ b/_data/chains/eip155-210309.json
@@ -22,7 +22,7 @@
   "explorers": [
     {
       "name": "PlatON explorer",
-      "url": "devnetscan.platon.network",
+      "url": "https://devnetscan.platon.network/",
       "standard": "none"
     }
   ]