diff --git a/emerald-grpc b/emerald-grpc
index 76d95358e..464bab505 160000
--- a/emerald-grpc
+++ b/emerald-grpc
@@ -1 +1 @@
-Subproject commit 76d95358e71835569e10efc2ee68babf2fdddbf2
+Subproject commit 464bab5057fa3b7baf91f11840ff627bc72a112b
diff --git a/foundation/src/main/resources/chains.yaml b/foundation/src/main/resources/chains.yaml
index 1044e91b3..3205dab98 100644
--- a/foundation/src/main/resources/chains.yaml
+++ b/foundation/src/main/resources/chains.yaml
@@ -169,6 +169,12 @@ chain-settings:
           grpcId: 10010
           short-names: [optimism-testnet, optimism-goerli]
           chain-id: 0x1A4
+        - id: Sepolia
+          priority: 10
+          code: OPTIMISM_SEPOLIA
+          grpcId: 10038
+          short-names: [optimism-sepolia]
+          chain-id: 0XAA37DC
     - id: bsc
       label: BNB Smart Chain
       type: eth