diff --git a/ape_safe/client/__init__.py b/ape_safe/client/__init__.py
index c7c0631..f1d350f 100644
--- a/ape_safe/client/__init__.py
+++ b/ape_safe/client/__init__.py
@@ -49,6 +49,7 @@
     43114: "https://safe-transaction-avalanche.safe.global",
     84531: "https://safe-transaction-base-testnet.safe.global",
     11155111: "https://safe-transaction-sepolia.safe.global",
+    81457: "https://transaction.blast-safe.io",
 }