diff --git a/src/Nethermind.Arbitrum/Config/ArbitrumChainSpecBasedSpecProvider.cs b/src/Nethermind.Arbitrum/Config/ArbitrumChainSpecBasedSpecProvider.cs
index 89a158c94..00e92ddb1 100644
--- a/src/Nethermind.Arbitrum/Config/ArbitrumChainSpecBasedSpecProvider.cs
+++ b/src/Nethermind.Arbitrum/Config/ArbitrumChainSpecBasedSpecProvider.cs
@@ -38,6 +38,10 @@ public override IReleaseSpec GetSpecInternal(ForkActivation activation)
         mutableSpec.IsEip7002Enabled = pragueEnabled;
         mutableSpec.IsEip6110Enabled = pragueEnabled;
 
+        // Precompiles
+        ((IReleaseSpec)mutableSpec).Precompiles.Add(ArbosAddresses.ArbSysAddress);
+        ((IReleaseSpec)mutableSpec).Precompiles.Add(ArbosAddresses.ArbGasInfoAddress);
+
         return mutableSpec;
     }
 }
diff --git a/src/Nethermind.Arbitrum/Genesis/ArbitrumLoadGenesisBlockStep.cs b/src/Nethermind.Arbitrum/Genesis/ArbitrumLoadGenesisBlockStep.cs
index ee5473f2f..344d1b9eb 100644
--- a/src/Nethermind.Arbitrum/Genesis/ArbitrumLoadGenesisBlockStep.cs
+++ b/src/Nethermind.Arbitrum/Genesis/ArbitrumLoadGenesisBlockStep.cs
@@ -1,6 +1,4 @@
 using Nethermind.Api;
-using Nethermind.Core.Crypto;
-using Nethermind.Evm.State;
 using Nethermind.Init.Steps;
 
 namespace Nethermind.Arbitrum.Genesis;
diff --git a/src/Nethermind.Arbitrum/nuget.config b/src/Nethermind.Arbitrum/nuget.config
index d3293ee4b..ad7cb00f8 100644
--- a/src/Nethermind.Arbitrum/nuget.config
+++ b/src/Nethermind.Arbitrum/nuget.config
@@ -4,17 +4,5 @@
     <clear />
     <add key="nuget.org" value="https://api.nuget.org/v3/index.json" />
     <add key="dotnet-libraries" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-libraries/nuget/v3/index.json" />
-    <!-- <add key="nugettest.org" value="https://apiint.nugettest.org/v3/index.json" /> -->
   </packageSources>
-  <packageSourceMapping>
-    <packageSource key="nuget.org">
-      <package pattern="*" />
-    </packageSource>
-    <packageSource key="dotnet-libraries">
-      <package pattern="System.CommandLine*" />
-    </packageSource>
-    <!-- <packageSource key="nugettest.org">
-      <package pattern="" />
-    </packageSource> -->
-  </packageSourceMapping>
-</configuration>
\ No newline at end of file
+</configuration>
diff --git a/src/nuget.config b/src/nuget.config
index d79939706..ad7cb00f8 100644
--- a/src/nuget.config
+++ b/src/nuget.config
@@ -4,18 +4,5 @@
     <clear />
     <add key="nuget.org" value="https://api.nuget.org/v3/index.json" />
     <add key="dotnet-libraries" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-libraries/nuget/v3/index.json" />
-    <!--<add key="nugettest.org" value="https://apiint.nugettest.org/v3/index.json" />-->
   </packageSources>
-  <packageSourceMapping>
-    <packageSource key="nuget.org">
-      <package pattern="*" />
-    </packageSource>
-    <packageSource key="dotnet-libraries">
-      <package pattern="System.CommandLine*" />
-    </packageSource>
-    <!--<packageSource key="nugettest.org">
-      <package pattern="" />
-    </packageSource>
-  </packageSourceMapping>-->
-  </packageSourceMapping>
 </configuration>