diff --git a/op/superseed/sepolia/genesis.json b/op/superseed/sepolia/genesis.json
index 3ec152ce..bd53fe42 100644
--- a/op/superseed/sepolia/genesis.json
+++ b/op/superseed/sepolia/genesis.json
@@ -30,7 +30,7 @@
       "optimism": {
         "eip1559Elasticity": 6,
         "eip1559Denominator": 50,
-        "eip1559DenominatorCanyon": 0
+        "eip1559DenominatorCanyon": 250
       }
     },
     "nonce": "0x0",
diff --git a/op/superseed/sepolia/rollup.json b/op/superseed/sepolia/rollup.json
index 0401f7c0..827511a1 100644
--- a/op/superseed/sepolia/rollup.json
+++ b/op/superseed/sepolia/rollup.json
@@ -36,6 +36,7 @@
   "holocene_time": 1732633200,
   "isthmus_time": 1744905600,
   "jovian_time": 1768978801,
+  "pectra_blob_schedule_time": 1742486400,
   "batch_inbox_address": "0x3a81f59e6bf4238d1ed202f3b06389454de3f204",
   "deposit_contract_address": "0x7a0db8c51432d2c3eb4e8f360a2eeb26ff2809fb",
   "l1_system_config_address": "0x4df2f170214198df84716b89c84b0c177c39f6c9"