diff --git a/params/config_arbitrum.go b/params/config_arbitrum.go
index 93245586a033..652cde214c74 100644
--- a/params/config_arbitrum.go
+++ b/params/config_arbitrum.go
@@ -64,7 +64,7 @@ func ArbitrumDevTestParams() ArbitrumChainParams {
 		EnableArbOS:               true,
 		AllowDebugPrecompiles:     true,
 		DataAvailabilityCommittee: false,
-		InitialArbOSVersion:       2,
+		InitialArbOSVersion:       3,
 		InitialChainOwner:         common.Address{},
 	}
 }
@@ -74,7 +74,7 @@ func ArbitrumDevTestDASParams() ArbitrumChainParams {
 		EnableArbOS:               true,
 		AllowDebugPrecompiles:     true,
 		DataAvailabilityCommittee: true,
-		InitialArbOSVersion:       2,
+		InitialArbOSVersion:       3,
 		InitialChainOwner:         common.Address{},
 	}
 }