diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3c259fc8c2..3d4eb80843 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@
 - [#4067](https://github.com/blockscout/blockscout/pull/4067) - Display LP tokens USD value and custom metadata in tokens dropdown at address page
 
 ### Fixes
+- [#4149](https://github.com/blockscout/blockscout/pull/4149) - Exclude smart_contract_additional_sources from JSON encoding in address schema
 - [#4038](https://github.com/blockscout/blockscout/pull/4038) - Add clause for abi_decode_address_output/1 when is_nil(address)
 - [#3989](https://github.com/blockscout/blockscout/pull/3989), [4061](https://github.com/blockscout/blockscout/pull/4061) - Fixed bug that sometimes lead to incorrect ordering of token transfers
 - [#3946](https://github.com/blockscout/blockscout/pull/3946) - Get NFT metadata from URIs with status_code 301
diff --git a/apps/explorer/lib/explorer/chain/address.ex b/apps/explorer/lib/explorer/chain/address.ex
index 693c8474ce..35c8951349 100644
--- a/apps/explorer/lib/explorer/chain/address.ex
+++ b/apps/explorer/lib/explorer/chain/address.ex
@@ -69,7 +69,8 @@ defmodule Explorer.Chain.Address do
              :token,
              :contracts_creation_internal_transaction,
              :contracts_creation_transaction,
-             :names
+             :names,
+             :smart_contract_additional_sources
            ]}
 
   @derive {Jason.Encoder,
@@ -80,7 +81,8 @@ defmodule Explorer.Chain.Address do
              :token,
              :contracts_creation_internal_transaction,
              :contracts_creation_transaction,
-             :names
+             :names,
+             :smart_contract_additional_sources
            ]}
 
   @primary_key {:hash, Hash.Address, autogenerate: false}