---
title: "UpdateParams defines a governance operation for updating the x/slashing module parameters. The authority defaults to the x/gov module account."
method: POST
path: "/cosmos.slashing.v1beta1.Msg/UpdateParams"
tags: ["Msg"]
---

# UpdateParams defines a governance operation for updating the x/slashing module parameters. The authority defaults to the x/gov module account.

`POST /cosmos.slashing.v1beta1.Msg/UpdateParams`

Since: cosmos-sdk 0.47

## Request body

- CosmosSlashingV1beta1MsgUpdateParams — MsgUpdateParams is the Msg/UpdateParams request type. Since: cosmos-sdk 0.47
  - `authority` string — authority is the address that controls the module (defaults to x/gov unless overwritten).
  - `params` CosmosSlashingV1beta1Params — Params represents the parameters used for by the slashing module.
    - `downtime_jail_duration` string
    - `min_signed_per_window` string, byte
    - `signed_blocks_window` string, int64
    - `slash_fraction_double_sign` string, byte
    - `slash_fraction_downtime` string, byte

## Response `200`

A successful response.

- CosmosSlashingV1beta1MsgUpdateParamsResponse — MsgUpdateParamsResponse defines the response structure for executing a MsgUpdateParams message. Since: cosmos-sdk 0.47

## Other responses

- `default` — An unexpected error response.

## Changes

- **2025-02-05** `de0653d8a73d` — 1 info
  - api operation id `EvidenceMsg_UpdateParamsMixin125` removed and replaced with `CircuitMsg_UpdateParamsMixin128`
- **2024-08-29** `29f6671190b2` — 1 info
  - api operation id `EvidenceMsg_UpdateParamsMixin128` removed and replaced with `EvidenceMsg_UpdateParamsMixin125`
- **2024-08-14** `21c607e4fa20` — 1 info
  - api operation id `CosmosSlashingV1Beta1Msg_UpdateParams` removed and replaced with `EvidenceMsg_UpdateParamsMixin128`
- **2024-02-23** `54713b4a9d25` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/pokt-network/apis/http-api-console/changes/cosmos.slashing.v1beta1.Msg/UpdateParams/post.md)

---

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