diff --git a/scripts/local_testnet/genesis.json b/scripts/local_testnet/genesis.json
index 7f6bc771b..9ef616388 100644
--- a/scripts/local_testnet/genesis.json
+++ b/scripts/local_testnet/genesis.json
@@ -12,8 +12,8 @@
     "berlinBlock": 0,
     "londonBlock": 0,
     "mergeNetsplitBlock": 0,
-    "shanghaiTime": 1670438240,
-    "shardingForkTime": 1670438336,
+    "shanghaiTime": 0,
+    "shardingForkTime": 0,
     "terminalTotalDifficulty": 0
   },
   "alloc": {
diff --git a/scripts/local_testnet/start_local_testnet.sh b/scripts/local_testnet/start_local_testnet.sh
index 4c07917c6..aa780339b 100755
--- a/scripts/local_testnet/start_local_testnet.sh
+++ b/scripts/local_testnet/start_local_testnet.sh
@@ -125,6 +125,10 @@ done
 
 sleeping 20
 
+# Reset the `genesis.json` config file fork times.
+sed -i 's/"shanghaiTime".*$/"shanghaiTime": 0,/g' genesis.json
+sed -i 's/"shardingForkTime".*$/"shardingForkTime": 0,/g' genesis.json
+
 for (( bn=1; bn<=$BN_COUNT; bn++ )); do
 
     execute_command_add_PID json_snoop_$bn.log json_rpc_snoop -p $((EL_base_auth_http + $bn)) -b 0.0.0.0 http://localhost:$((EL_base_auth_http + $bn + 10))