diff --git a/docs/guides/reputation-mining-client.md b/docs/guides/reputation-mining-client.md
index 22572f933a..ac8f5ab113 100644
--- a/docs/guides/reputation-mining-client.md
+++ b/docs/guides/reputation-mining-client.md
@@ -7,7 +7,7 @@ sidebar_position: 3
 
 ## Running the Mining Client
 
-The reputation mining client can be run locally to sync with a local hardhat instance, the `rinkeby`, `ropsten`, or `kovan`  testnets, or with `mainnet`.
+The reputation mining client can be run locally to sync with a local hardhat instance, the `sepolia`  testnet, or with `mainnet`.
 
 To participate in the reputation mining process you need to have staked at least the [minimum amount of CLNY Tokens](../interfaces/ireputationminingcycle#getminstake-uint256-minstake), for at least [one full mining cycle duration](../interfaces/ireputationminingcycle#getminingwindowduration-uint256-miningwindowduration) before you can submit a new reputation root hash.
 
@@ -22,13 +22,13 @@ Mandatory arguments:
 ```
 (--minerAddress <address>) | (--privateKey <key>)
 (--colonyNetworkAddress <address>)
-(--syncFrom <number>)   // [mainnet:'7913100']
+(--syncFrom <number>)   // [sepolia: '28290396', mainnet:'7913100']
 ```
 
 Optional arguments:
 
 ```
-[--network <(rinkeby|ropsten|kovan|mainnet)>]
+[--network <(sepolia|mainnet)>]
 [--localPort <number>]
 [--dbPath <$PATH>]
 [--auto <(true|false)>]
@@ -43,7 +43,7 @@ Private key of the miner account which the client will sign reputation mining co
 
 #### `--colonyNetworkAddress`
 
-The address of the Colony Network's `EtherRouter`. See [Upgrades to the Colony Network](../concepts/upgrades) for more information about the EtherRouter design pattern. This address is static on all networks, with the `mainnet` address of `0x5346d0f80e2816fad329f2c140c870ffc3c3e2ef`
+The address of the Colony Network's `EtherRouter`. See [Upgrades to the Colony Network](../concepts/upgrades) for more information about the EtherRouter design pattern. This address is static on all networks, with the `sepolia` address of `0x7777494e3d8cce0D3570E21FEf820F9Fee077777` and the `mainnet` address of `0x5346d0f80e2816fad329f2c140c870ffc3c3e2ef`
 
 #### `--dbPath`
 
@@ -51,7 +51,7 @@ Path for the sqlite database storing reputation state. Default is `./reputationS
 
 #### `--network`
 
-Used for connecting to a supported Infura node (instead of a local client). Valid options are `rinkeby` `ropsten` `kovan` and `mainnet`.
+Used for connecting to a supported Infura node (instead of a local client). Valid options are `sepolia` and `mainnet`.
 
 #### `--localPort`
 
@@ -61,6 +61,7 @@ Used to connect to a local client running on the specified port. Default is `854
 
 Block number to start reputation state sync from. This is the block at which the reputation mining process was initialised. This number is static on all networks
 
+* `sepolia: 28290396`
 * `mainnet: 7913100`
 
 Note that beginning the sync with a too-early block will result in an error. If you get this exception, try syncing from a more recent block. Note that the sync process can take long. Latest tests syncing a client from scratch to 28 reputation cycles took \~2 hours.
diff --git a/packages/reputation-miner/bin/index.js b/packages/reputation-miner/bin/index.js
index acb428fe34..7a76f36ae0 100644
--- a/packages/reputation-miner/bin/index.js
+++ b/packages/reputation-miner/bin/index.js
@@ -11,7 +11,7 @@ const {RetryProvider} = require("../../package-utils");
 
 const { ConsoleAdapter, SlackAdapter, DiscordAdapter, TruffleLoader } = require("../../package-utils");
 
-const supportedInfuraNetworks = ["rinkeby", "ropsten", "kovan", "mainnet"];
+const supportedInfuraNetworks = ["sepolia", "mainnet"];
 const {
   minerAddress,
   privateKey,