diff --git a/core/chains/evm/config/toml/defaults/Metis_Sepolia.toml b/core/chains/evm/config/toml/defaults/Metis_Sepolia.toml
index 4e6307302f5..c1f11362a33 100644
--- a/core/chains/evm/config/toml/defaults/Metis_Sepolia.toml
+++ b/core/chains/evm/config/toml/defaults/Metis_Sepolia.toml
@@ -1,5 +1,5 @@
 ChainID = '59902'
-ChainType = 'metis'
+ChainType = 'optimismBedrock'
 FinalityDepth = 10
 MinIncomingConfirmations = 1
 NoNewHeadsThreshold = '0'