diff --git a/chainList.json b/chainList.json
index f1c1672e7..cb6058c5e 100644
--- a/chainList.json
+++ b/chainList.json
@@ -318,7 +318,7 @@
       "https://sepolia-optimistic.etherscan.io"
     ],
     "superchainLevel": 1,
-    "governedByOptimism": false,
+    "governedByOptimism": true,
     "dataAvailabilityType": "eth-da",
     "parent": {
       "type": "L2",
@@ -426,7 +426,7 @@
       "https://testnet.explorer.metall2.com"
     ],
     "superchainLevel": 0,
-    "governedByOptimism": false,
+    "governedByOptimism": true,
     "dataAvailabilityType": "eth-da",
     "parent": {
       "type": "L2",
@@ -462,7 +462,7 @@
       "https://sepolia.explorer.mode.network"
     ],
     "superchainLevel": 0,
-    "governedByOptimism": false,
+    "governedByOptimism": true,
     "dataAvailabilityType": "eth-da",
     "parent": {
       "type": "L2",
@@ -571,7 +571,7 @@
       "https://sepolia.explorer.zora.energy"
     ],
     "superchainLevel": 0,
-    "governedByOptimism": false,
+    "governedByOptimism": true,
     "dataAvailabilityType": "eth-da",
     "parent": {
       "type": "L2",
@@ -607,7 +607,7 @@
       ""
     ],
     "superchainLevel": 0,
-    "governedByOptimism": false,
+    "governedByOptimism": true,
     "dataAvailabilityType": "eth-da",
     "parent": {
       "type": "L2",
diff --git a/chainList.toml b/chainList.toml
index 851fe1696..e475d4450 100644
--- a/chainList.toml
+++ b/chainList.toml
@@ -228,7 +228,7 @@
   rpc = ["https://sepolia.optimism.io"]
   explorers = ["https://sepolia-optimistic.etherscan.io"]
   superchain_level = 1
-  governed_by_optimism = false
+  governed_by_optimism = true
   data_availability_type = "eth-da"
   [chains.parent]
     type = "L2"
@@ -306,7 +306,7 @@
   rpc = ["https://testnet.rpc.metall2.com"]
   explorers = ["https://testnet.explorer.metall2.com"]
   superchain_level = 0
-  governed_by_optimism = false
+  governed_by_optimism = true
   data_availability_type = "eth-da"
   [chains.parent]
     type = "L2"
@@ -332,7 +332,7 @@
   rpc = ["https://sepolia.mode.network"]
   explorers = ["https://sepolia.explorer.mode.network"]
   superchain_level = 0
-  governed_by_optimism = false
+  governed_by_optimism = true
   data_availability_type = "eth-da"
   [chains.parent]
     type = "L2"
@@ -411,7 +411,7 @@
   rpc = ["https://sepolia.rpc.zora.energy"]
   explorers = ["https://sepolia.explorer.zora.energy"]
   superchain_level = 0
-  governed_by_optimism = false
+  governed_by_optimism = true
   data_availability_type = "eth-da"
   [chains.parent]
     type = "L2"
@@ -437,7 +437,7 @@
   rpc = [""]
   explorers = [""]
   superchain_level = 0
-  governed_by_optimism = false
+  governed_by_optimism = true
   data_availability_type = "eth-da"
   [chains.parent]
     type = "L2"
diff --git a/superchain/configs/configs.json b/superchain/configs/configs.json
index cd7b77430..a1791142e 100644
--- a/superchain/configs/configs.json
+++ b/superchain/configs/configs.json
@@ -1337,7 +1337,7 @@
           "SequencerRPC": "https://sepolia.mode.network",
           "Explorer": "https://sepolia.explorer.mode.network",
           "SuperchainLevel": 0,
-          "GovernedByOptimism": false,
+          "GovernedByOptimism": true,
           "StandardChainCandidate": true,
           "SuperchainTime": 1703203200,
           "batch_inbox_address": "0xcDDaE6148dA1E003C230E4527f9baEdc8a204e7E",
@@ -1472,7 +1472,7 @@
           "SequencerRPC": "https://testnet.rpc.metall2.com",
           "Explorer": "https://testnet.explorer.metall2.com",
           "SuperchainLevel": 0,
-          "GovernedByOptimism": false,
+          "GovernedByOptimism": true,
           "StandardChainCandidate": true,
           "SuperchainTime": 1708534800,
           "batch_inbox_address": "0x24567B64a86A4c966655fba6502a93dFb701E316",
@@ -2019,7 +2019,7 @@
           "SequencerRPC": "https://sepolia-sequencer.optimism.io",
           "Explorer": "https://sepolia-optimistic.etherscan.io",
           "SuperchainLevel": 1,
-          "GovernedByOptimism": false,
+          "GovernedByOptimism": true,
           "StandardChainCandidate": false,
           "SuperchainTime": 0,
           "batch_inbox_address": "0xff00000000000000000000000000000011155420",
@@ -2156,7 +2156,7 @@
           "SequencerRPC": "https://sepolia.rpc.zora.energy",
           "Explorer": "https://sepolia.explorer.zora.energy",
           "SuperchainLevel": 0,
-          "GovernedByOptimism": false,
+          "GovernedByOptimism": true,
           "StandardChainCandidate": true,
           "SuperchainTime": 0,
           "batch_inbox_address": "0xCd734290E4bd0200dAC631c7D4b9E8a33234e91f",
@@ -2237,7 +2237,7 @@
           "SequencerRPC": "",
           "Explorer": "",
           "SuperchainLevel": 0,
-          "GovernedByOptimism": false,
+          "GovernedByOptimism": true,
           "StandardChainCandidate": false,
           "SuperchainTime": 0,
           "batch_inbox_address": "0xFf00000000000000000000000000000011155421",