diff --git a/data/ecosystems/e/ethereum.toml b/data/ecosystems/e/ethereum.toml
index 1d233b14..d48a4a0d 100644
--- a/data/ecosystems/e/ethereum.toml
+++ b/data/ecosystems/e/ethereum.toml
@@ -1158,6 +1158,10 @@ tags = ["Dapp"]
 url = "https://github.com/Nethereum/Nethereum"
 tags = ["Dapp"]
 
+[[repo]]
+url = "https://github.com/NethermindEth/nethermind"
+tags = ["Protocol"]
+
 [[repo]]
 url = "https://github.com/Neufund/TypeChain"