diff --git a/README.md b/README.md
index 7302438a7..6cea11874 100644
--- a/README.md
+++ b/README.md
@@ -196,15 +196,15 @@ where `<erigon address>` is either `localhost` or the IP address of the device r
 
 ### Multiple Instances / One Machine
 
-Define 5 flags to avoid conflicts: `--datadir --port --http.port --torrent.port --private.api.addr`. Example of multiple chains on the same machine:
+Define 6 flags to avoid conflicts: `--datadir --port --http.port --authrpc.port --torrent.port --private.api.addr`. Example of multiple chains on the same machine:
 
 ```
 # mainnet
-./build/bin/erigon --datadir="<your_mainnet_data_path>" --chain=mainnet --port=30303 --http.port=8545 --torrent.port=42069 --private.api.addr=127.0.0.1:9090 --http --ws --http.api=eth,debug,net,trace,web3,erigon
+./build/bin/erigon --datadir="<your_mainnet_data_path>" --chain=mainnet --port=30303 --http.port=8545 --authrpc.port=8551 --torrent.port=42069 --private.api.addr=127.0.0.1:9090 --http --ws --http.api=eth,debug,net,trace,web3,erigon
 
 
 # rinkeby
-./build/bin/erigon --datadir="<your_rinkeby_data_path>" --chain=rinkeby --port=30304 --http.port=8546 --torrent.port=42068 --private.api.addr=127.0.0.1:9091 --http --ws --http.api=eth,debug,net,trace,web3,erigon
+./build/bin/erigon --datadir="<your_rinkeby_data_path>" --chain=rinkeby --port=30304 --http.port=8546 --authrpc.port=8552 --torrent.port=42068 --private.api.addr=127.0.0.1:9091 --http --ws --http.api=eth,debug,net,trace,web3,erigon
 ```
 
 Quote your path if it has spaces.