diff --git a/EIPS/eip-831.md b/EIPS/eip-831.md
index d0125e0b..59d0741c 100644
--- a/EIPS/eip-831.md
+++ b/EIPS/eip-831.md
@@ -39,7 +39,7 @@ The need for this ERC emerged when refining ERC-681. We need a container that do
 
 ## References
 
-1. ERC-681, http://eips.ethereum.org/EIPS/eip-681
+1. ERC-681, https://eips.ethereum.org/EIPS/eip-681
 2. ERC-67, https://github.com/ethereum/EIPs/issues/67
 
 ## Copyright