diff --git a/.eslintrc.json b/.eslintrc.json
index c3cabcdac5..59326c9abf 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -171,6 +171,7 @@
 
                 "@typescript-eslint/array-type": "error",
                 "@typescript-eslint/consistent-type-assertions": "error",
+                "@typescript-eslint/consistent-type-definitions": ["error", "type"],
                 "@typescript-eslint/consistent-type-imports": "error",
                 "@typescript-eslint/explicit-function-return-type": [
                     "error",
diff --git a/web/src/global.d.ts b/web/src/global.d.ts
index f40ae0dc17..7e38aacdf6 100644
--- a/web/src/global.d.ts
+++ b/web/src/global.d.ts
@@ -5,6 +5,7 @@
 
 declare let zulip_test: any; // eslint-disable-line @typescript-eslint/no-explicit-any
 
+// eslint-disable-next-line @typescript-eslint/consistent-type-definitions
 interface JQuery {
     expectOne(): JQuery;
     tab(action?: string): this; // From web/third/bootstrap
diff --git a/web/src/message_parser.ts b/web/src/message_parser.ts
index 85a6f3a64d..eb5c6d708b 100644
--- a/web/src/message_parser.ts
+++ b/web/src/message_parser.ts
@@ -3,9 +3,9 @@ import $ from "jquery";
 
 // TODO: Move this to message_store when it is
 // converted to TypeScript.
-interface Message {
+type Message = {
     content: string;
-}
+};
 
 // We need to check if the message content contains the specified HTML
 // elements.  We wrap the message.content in a <div>; this is
diff --git a/web/src/settings_config.ts b/web/src/settings_config.ts
index aba18e4dc7..a7aa2f134c 100644
--- a/web/src/settings_config.ts
+++ b/web/src/settings_config.ts
@@ -108,7 +108,7 @@ export const twenty_four_hour_time_values = {
     },
 };
 
-export interface DisplaySettings {
+export type DisplaySettings = {
     settings: {
         user_display_settings: string[];
     };
@@ -116,7 +116,7 @@ export interface DisplaySettings {
         high_contrast_mode: boolean;
         dense_mode: boolean;
     };
-}
+};
 
 /* istanbul ignore next */
 export const get_all_display_settings = (): DisplaySettings => ({
@@ -761,7 +761,7 @@ export function get_notifications_table_row_data(
     });
 }
 
-export interface AllNotifications {
+export type AllNotifications = {
     general_settings: {label: string; notification_settings: NotificationSettingCheckbox[]}[];
     settings: {
         desktop_notification_settings: string[];
@@ -773,7 +773,7 @@ export interface AllNotifications {
         push_notifications: boolean;
         enable_online_push_notifications: boolean;
     };
-}
+};
 
 export const all_notifications = (settings_object: Settings): AllNotifications => ({
     general_settings: [
diff --git a/web/src/url-template.d.ts b/web/src/url-template.d.ts
index a7d7e3180e..dff60bf82f 100644
--- a/web/src/url-template.d.ts
+++ b/web/src/url-template.d.ts
@@ -6,14 +6,14 @@
 declare module "url-template" {
     export type PrimitiveValue = string | number | boolean | null;
 
-    export interface Template {
+    export type Template = {
         expand(
             context: Record<
                 string,
                 PrimitiveValue | PrimitiveValue[] | Record<string, PrimitiveValue>
             >,
         ): string;
-    }
+    };
 
     export function parse(template: string): Template;
 }