diff --git a/contracts/hardhat.config.ts b/contracts/hardhat.config.ts
index 3ba5be4e..0f38c579 100644
--- a/contracts/hardhat.config.ts
+++ b/contracts/hardhat.config.ts
@@ -17,18 +17,17 @@ const config: HardhatUserConfig = {
 
   networks: {
     hardhat: {
-      // blockGasLimit: 40000000, // amb value
-      // hardfork: "byzantium",
+      blockGasLimit: 40000000, // amb value
+      hardfork: "byzantium",
       companionNetworks: {amb: 'hardhat'},
-      // initialDate: "13 May 2022 18:10:36 GMT",
+      initialDate: "13 May 2022 18:10:36 GMT",
 
       // for debugging: run local node with state from some network
       forking: {
-        enabled: true,
-        url: "https://mainnet.infura.io/v3/" + process.env.INFURA_KEY,
-        // url: "https://network.ambrosus-dev.io",
+        enabled: false,
+        url: "https://network.ambrosus-dev.io",
         // url: "https://eth-rinkeby.alchemyapi.io/v2/e1F5R9XuWDU2-zCtzaMDg4Ybb5SuoEDA"
-        blockNumber: 19218848,
+        blockNumber: 0xb00ba,
       }
     },