diff --git a/packages/mermaid/src/diagrams/sequence/sequenceDb.ts b/packages/mermaid/src/diagrams/sequence/sequenceDb.ts
index 5d844904bc..03d3210aa9 100644
--- a/packages/mermaid/src/diagrams/sequence/sequenceDb.ts
+++ b/packages/mermaid/src/diagrams/sequence/sequenceDb.ts
@@ -1,5 +1,6 @@
 import { getConfig } from '../../diagram-api/diagramAPI.js';
 import { log } from '../../logger.js';
+import { ImperativeState } from '../../utils/imperativeState.js';
 import { sanitizeText } from '../common/common.js';
 import {
   clear as commonClear,
@@ -10,11 +11,9 @@ import {
   setAccTitle,
   setDiagramTitle,
 } from '../common/commonDb.js';
-import { ImperativeState } from '../../utils/imperativeState.js';
 import type { Actor, AddMessageParams, Box, Message, Note } from './types.js';
 
-// eslint-disable-next-line @typescript-eslint/consistent-type-definitions
-type State = {
+interface SequenceState {
   prevActor?: string;
   actors: Record<string, Actor>;
   createdActors: Record<string, number>;
@@ -27,9 +26,9 @@ type State = {
   currentBox?: Box;
   lastCreated?: Actor;
   lastDestroyed?: Actor;
-};
+}
 
-const state = new ImperativeState<State>(() => ({
+const state = new ImperativeState<SequenceState>(() => ({
   prevActor: undefined,
   actors: {},
   createdActors: {},
diff --git a/packages/mermaid/src/utils/imperativeState.ts b/packages/mermaid/src/utils/imperativeState.ts
index dcadeee1fd..1661e356c4 100644
--- a/packages/mermaid/src/utils/imperativeState.ts
+++ b/packages/mermaid/src/utils/imperativeState.ts
@@ -2,11 +2,11 @@
  * Resettable state storage.
  * @example
  * ```
- * const state = new ImperativeState(() => {
+ * const state = new ImperativeState(() => ({
  *   foo: undefined as string | undefined,
  *   bar: [] as number[],
  *   baz: 1 as number | undefined,
- * });
+ * }));
  *
  * state.records.foo = "hi";
  * console.log(state.records.foo); // prints "hi";
@@ -21,7 +21,7 @@
  * // }
  * ```
  */
-export class ImperativeState<S extends Record<string, unknown>> {
+export class ImperativeState<S> {
   public records: S;
 
   /**