diff --git a/ape_etherscan/verify.py b/ape_etherscan/verify.py
index a411e9a..d6927e6 100644
--- a/ape_etherscan/verify.py
+++ b/ape_etherscan/verify.py
@@ -39,7 +39,7 @@
 }
 _SPDX_ID_KEY = "SPDX-License-Identifier: "
 
-ECOSYSTEMS_VERIFY_USING_JSON = ("ethereum", "base", "blast")
+ECOSYSTEMS_VERIFY_USING_JSON = ("arbitrum", "base", "blast", "ethereum")
 
 
 class LicenseType(Enum):