diff --git a/go.mod b/go.mod
index 155c28604..f9f994ccc 100644
--- a/go.mod
+++ b/go.mod
@@ -198,4 +198,4 @@ require (
 
 replace github.com/ethereum-optimism/optimism v1.4.0 => ./
 
-replace github.com/ethereum/go-ethereum v1.13.1 => github.com/kroma-network/go-ethereum v0.3.1-0.20231219080919-1dedb4f88dcd
+replace github.com/ethereum/go-ethereum v1.13.1 => github.com/kroma-network/go-ethereum v0.4.2
diff --git a/go.sum b/go.sum
index 8328af1f8..54ca1c340 100644
--- a/go.sum
+++ b/go.sum
@@ -398,8 +398,8 @@ github.com/kr/pty v1.1.3/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
-github.com/kroma-network/go-ethereum v0.3.1-0.20231219080919-1dedb4f88dcd h1:m0C9KtoVLf9a1WFpfZ6x6CWS0IJKLYoljRcH1yHzH9o=
-github.com/kroma-network/go-ethereum v0.3.1-0.20231219080919-1dedb4f88dcd/go.mod h1:SsK2EAbCigQsKUmhnHSe9KXrUEg2RKJcKFT2+/f2Q+M=
+github.com/kroma-network/go-ethereum v0.4.2 h1:LqH/SHNv2VDbcnkzngnUF4ETbk28y6Vp8YG45ihqxjM=
+github.com/kroma-network/go-ethereum v0.4.2/go.mod h1:SsK2EAbCigQsKUmhnHSe9KXrUEg2RKJcKFT2+/f2Q+M=
 github.com/kroma-network/zktrie v0.5.1-0.20230420142222-950ce7a8ce84 h1:VpLCQx+tFV6Nk0hbs3Noyxma/q9wIDdyacKpGQWUMI8=
 github.com/kroma-network/zktrie v0.5.1-0.20230420142222-950ce7a8ce84/go.mod h1:w54LrYo5rJEV503BgMPRNONsLTOEQv5V87q+uYaw9sM=
 github.com/kylelemons/godebug v1.1.0 h1:RPNrshWIDI6G2gRW9EHilWtl7Z6Sb1BR0xunSBf0SNc=
diff --git a/op-node/chaincfg/chains.go b/op-node/chaincfg/chains.go
index 1158b8699..54d694b1a 100644
--- a/op-node/chaincfg/chains.go
+++ b/op-node/chaincfg/chains.go
@@ -73,7 +73,7 @@ var Sepolia = &rollup.Config{
 	L1SystemConfigAddress:  common.HexToAddress("0x398c8ea789968893095d86cba168378a4f452e33"),
 	RegolithTime:           u64Ptr(0),
 	CanyonTime:             u64Ptr(1707897600),
-	DeltaTime:              nil,
+	DeltaTime:              u64Ptr(1708416000),
 }
 
 var NetworksByName = map[string]*rollup.Config{
diff --git a/op-node/chaincfg/chains_test.go b/op-node/chaincfg/chains_test.go
index 754a23619..b811d35f6 100644
--- a/op-node/chaincfg/chains_test.go
+++ b/op-node/chaincfg/chains_test.go
@@ -100,5 +100,5 @@ var sepoliaCfg = rollup.Config{
 	L1SystemConfigAddress:  common.HexToAddress("0x398c8ea789968893095d86cba168378a4f452e33"),
 	RegolithTime:           u64Ptr(0),
 	CanyonTime:             u64Ptr(1707897600),
-	DeltaTime:              nil,
+	DeltaTime:              u64Ptr(1708416000),
 }
diff --git a/ops-devnet/docker-compose.yml b/ops-devnet/docker-compose.yml
index 976b68326..4f49b0ecf 100644
--- a/ops-devnet/docker-compose.yml
+++ b/ops-devnet/docker-compose.yml
@@ -31,7 +31,7 @@ services:
 
   l2:
     pid: host # allow debugging
-    image: kromanetwork/geth:v0.4.0-dev
+    image: kromanetwork/geth:v0.4.1
     ports:
       - "9545:8545"
       - "9546:8546"