diff --git a/cli/src/cli.rs b/cli/src/cli.rs
index 91b5dad92c..202769692e 100644
--- a/cli/src/cli.rs
+++ b/cli/src/cli.rs
@@ -408,6 +408,10 @@ pub enum CliCommand {
         vote_account_pubkey: Pubkey,
         new_identity_account: SignerIndex,
     },
+    VoteUpdateCommission {
+        vote_account_pubkey: Pubkey,
+        commission: u8,
+    },
     // Wallet Commands
     Address,
     Airdrop {
@@ -728,6 +732,9 @@ pub fn parse_command(
         ("vote-update-validator", Some(matches)) => {
             parse_vote_update_validator(matches, default_signer_path, wallet_manager)
         }
+        ("vote-update-commission", Some(matches)) => {
+            parse_vote_update_commission(matches, default_signer_path, wallet_manager)
+        }
         ("vote-authorize-voter", Some(matches)) => parse_vote_authorize(
             matches,
             default_signer_path,
@@ -2217,6 +2224,10 @@ pub fn process_command(config: &CliConfig) -> ProcessResult {
             &vote_account_pubkey,
             *new_identity_account,
         ),
+        CliCommand::VoteUpdateCommission {
+            vote_account_pubkey,
+            commission,
+        } => process_vote_update_commission(&rpc_client, config, &vote_account_pubkey, *commission),
 
         // Wallet Commands
 
diff --git a/cli/src/vote.rs b/cli/src/vote.rs
index 6c686f2bc4..4df27c2665 100644
--- a/cli/src/vote.rs
+++ b/cli/src/vote.rs
@@ -174,6 +174,37 @@ impl VoteSubCommands for App<'_, '_> {
                         .help("Authorized withdrawer keypair"),
                 )
         )
+        .subcommand(
+            SubCommand::with_name("vote-update-commission")
+                .about("Update the vote account's commission")
+                .arg(
+                    Arg::with_name("vote_account_pubkey")
+                        .index(1)
+                        .value_name("VOTE_ACCOUNT_ADDRESS")
+                        .takes_value(true)
+                        .required(true)
+                        .validator(is_valid_pubkey)
+                        .help("Vote account to update"),
+                )
+                .arg(
+                    Arg::with_name("commission")
+                        .index(2)
+                        .value_name("PERCENTAGE")
+                        .takes_value(true)
+                        .required(true)
+                        .validator(is_valid_percentage)
+                        .help("The new commission")
+                )
+                .arg(
+                    Arg::with_name("authorized_withdrawer")
+                        .index(3)
+                        .value_name("AUTHORIZED_KEYPAIR")
+                        .takes_value(true)
+                        .required(true)
+                        .validator(is_valid_signer)
+                        .help("Authorized withdrawer keypair"),
+                )
+        )
         .subcommand(
             SubCommand::with_name("vote-account")
                 .about("Show the contents of a vote account")
@@ -328,6 +359,33 @@ pub fn parse_vote_update_validator(
     })
 }
 
+pub fn parse_vote_update_commission(
+    matches: &ArgMatches<'_>,
+    default_signer_path: &str,
+    wallet_manager: &mut Option<Arc<RemoteWalletManager>>,
+) -> Result<CliCommandInfo, CliError> {
+    let vote_account_pubkey =
+        pubkey_of_signer(matches, "vote_account_pubkey", wallet_manager)?.unwrap();
+    let (authorized_withdrawer, _) = signer_of(matches, "authorized_withdrawer", wallet_manager)?;
+    let commission = value_t_or_exit!(matches, "commission", u8);
+
+    let payer_provided = None;
+    let signer_info = generate_unique_signers(
+        vec![payer_provided, authorized_withdrawer],
+        matches,
+        default_signer_path,
+        wallet_manager,
+    )?;
+
+    Ok(CliCommandInfo {
+        command: CliCommand::VoteUpdateCommission {
+            vote_account_pubkey,
+            commission,
+        },
+        signers: signer_info.signers,
+    })
+}
+
 pub fn parse_vote_get_account_command(
     matches: &ArgMatches<'_>,
     wallet_manager: &mut Option<Arc<RemoteWalletManager>>,
@@ -534,6 +592,33 @@ pub fn process_vote_update_validator(
     log_instruction_custom_error::<VoteError>(result, &config)
 }
 
+pub fn process_vote_update_commission(
+    rpc_client: &RpcClient,
+    config: &CliConfig,
+    vote_account_pubkey: &Pubkey,
+    commission: u8,
+) -> ProcessResult {
+    let authorized_withdrawer = config.signers[1];
+    let (recent_blockhash, fee_calculator) = rpc_client.get_recent_blockhash()?;
+    let ixs = vec![vote_instruction::update_commission(
+        vote_account_pubkey,
+        &authorized_withdrawer.pubkey(),
+        commission,
+    )];
+
+    let message = Message::new_with_payer(&ixs, Some(&config.signers[0].pubkey()));
+    let mut tx = Transaction::new_unsigned(message);
+    tx.try_sign(&config.signers, recent_blockhash)?;
+    check_account_for_fee(
+        rpc_client,
+        &config.signers[0].pubkey(),
+        &fee_calculator,
+        &tx.message,
+    )?;
+    let result = rpc_client.send_and_confirm_transaction_with_spinner(&tx);
+    log_instruction_custom_error::<VoteError>(result, &config)
+}
+
 fn get_vote_account(
     rpc_client: &RpcClient,
     vote_account_pubkey: &Pubkey,
@@ -855,6 +940,27 @@ mod tests {
             }
         );
 
+        let test_update_commission = test_commands.clone().get_matches_from(vec![
+            "test",
+            "vote-update-commission",
+            &pubkey_string,
+            "42",
+            &keypair_file,
+        ]);
+        assert_eq!(
+            parse_command(&test_update_commission, &default_keypair_file, &mut None).unwrap(),
+            CliCommandInfo {
+                command: CliCommand::VoteUpdateCommission {
+                    vote_account_pubkey: pubkey,
+                    commission: 42,
+                },
+                signers: vec![
+                    read_keypair_file(&default_keypair_file).unwrap().into(),
+                    Box::new(read_keypair_file(&keypair_file).unwrap()),
+                ],
+            }
+        );
+
         // Test WithdrawFromVoteAccount subcommand
         let test_withdraw_from_vote_account = test_commands.clone().get_matches_from(vec![
             "test",