diff --git a/src/dao.ts b/src/dao.ts
index 19f152b..c8e8651 100644
--- a/src/dao.ts
+++ b/src/dao.ts
@@ -14,6 +14,7 @@ import {
   ParamChangeProposalInfo,
   ParamsContractmanagerInfo,
   ParamsCronInfo,
+  ParamsDexInfo,
   ParamsFeeburnerInfo,
   ParamsFeerefunderInfo,
   ParamsGlobalfeeInfo,
@@ -1496,6 +1497,25 @@ export class DaoMember {
     );
   }
 
+  /**
+   * submitUpdateParamsDexProposal creates proposal which changes soe params of dex module.
+   */
+
+  async submitUpdateParamsDexProposal(
+    chainManagerAddress: string,
+    title: string,
+    description: string,
+    message: ParamsDexInfo,
+    amount: string,
+  ): Promise<number> {
+    return await this.submitSingleChoiceProposal(
+      title,
+      description,
+      [chainManagerWrapper(chainManagerAddress, message)],
+      amount,
+    );
+  }
+
   /**
    * submitUpdateParamsContractmanagerProposal creates proposal which changes some params of contractmanager module.
    */
diff --git a/src/proposal.ts b/src/proposal.ts
index daecb70..53d3b1b 100644
--- a/src/proposal.ts
+++ b/src/proposal.ts
@@ -64,6 +64,13 @@ export type ParamsCronInfo = {
   limit: number;
 };
 
+export type ParamsDexInfo = {
+  fee_tiers: number[];
+  paused: boolean;
+  max_jits_per_block: number;
+  good_til_purge_allowance: number;
+};
+
 export type ParamsContractmanagerInfo = {
   sudo_call_gas_limit: string;
 };
@@ -498,6 +505,27 @@ export const updateCronParamsProposal = (info: ParamsCronInfo): any => ({
   },
 });
 
+export const updateDexParamsProposal = (info: ParamsDexInfo): any => ({
+  custom: {
+    submit_admin_proposal: {
+      admin_proposal: {
+        proposal_execute_message: {
+          message: JSON.stringify({
+            '@type': '/neutron.dex.MsgUpdateParams',
+            authority: ADMIN_MODULE_ADDRESS,
+            params: {
+              fee_tiers: info.fee_tiers,
+              paused: info.paused,
+              max_jits_per_block: info.max_jits_per_block,
+              good_til_purge_allowance: info.good_til_purge_allowance,
+            },
+          }),
+        },
+      },
+    },
+  },
+});
+
 export const updateContractmanagerParamsProposal = (
   info: ParamsContractmanagerInfo,
 ): any => ({