diff --git a/packages/components/src/components/custom-select/custom-select.lite.tsx b/packages/components/src/components/custom-select/custom-select.lite.tsx
index 1de33e3016ab..2360a5cf060b 100644
--- a/packages/components/src/components/custom-select/custom-select.lite.tsx
+++ b/packages/components/src/components/custom-select/custom-select.lite.tsx
@@ -30,6 +30,7 @@ import {
 import {
 	ClickEvent,
 	GeneralEvent,
+	GeneralKeyboardEvent,
 	InputEvent,
 	InteractionEvent
 } from '../../shared/model';
@@ -406,7 +407,9 @@ export default function DBCustomSelect(props: DBCustomSelectProps) {
 			event.stopPropagation();
 			event.preventDefault();
 		},
-		handleKeyboardPress: (event: any) => {
+		handleKeyboardPress: (
+			event: GeneralKeyboardEvent<HTMLDetailsElement>
+		) => {
 			event.stopPropagation();
 			if (event.key === 'Escape' && detailsRef?.open) {
 				state.handleClose(undefined, true);
diff --git a/packages/components/src/components/custom-select/model.ts b/packages/components/src/components/custom-select/model.ts
index 45df66417cc7..689615049e4d 100644
--- a/packages/components/src/components/custom-select/model.ts
+++ b/packages/components/src/components/custom-select/model.ts
@@ -1,5 +1,6 @@
 import {
 	BaseFormProps,
+	ChangeEvent,
 	ClickEvent,
 	CloseEventState,
 	CustomFormProps,
@@ -8,6 +9,7 @@ import {
 	FormState,
 	FromValidState,
 	GeneralEvent,
+	GeneralKeyboardEvent,
 	GlobalProps,
 	GlobalState,
 	IconProps,
@@ -282,15 +284,19 @@ export type DBCustomSelectDefaultState = {
 	) => void;
 	handleSummaryFocus: () => void;
 	handleSelect: (value?: string) => void;
-	handleSelectAll: (event: any) => void;
-	handleClearAll: (event: any) => void;
-	handleDropdownToggle: (event: any) => void;
-	handleDocumentClose: (event: any) => void;
+	handleSelectAll: (event: ChangeEvent<HTMLInputElement>) => void;
+	handleClearAll: (event: ClickEvent<HTMLButtonElement>) => void;
+	handleDropdownToggle: (event: GeneralEvent<HTMLDetailsElement>) => void;
+	handleDocumentClose: (event: GeneralEvent<HTMLElement>) => void;
 	handleOpenByKeyboardFocus: () => void;
 	handleFocusFirstDropdownCheckbox: (activeElement?: Element) => void;
-	handleKeyboardPress: (event: any) => void;
-	handleArrowDownUp: (event: any) => void;
-	handleSearch: (event: any) => void;
+	handleKeyboardPress: (
+		event: GeneralKeyboardEvent<HTMLDetailsElement>
+	) => void;
+	handleArrowDownUp: (event: GeneralKeyboardEvent<HTMLElement>) => void;
+	handleSearch: (
+		valueOrEvent?: InputEvent<HTMLInputElement> | string | void
+	) => void;
 	handleOptionSelected: (_values: string[]) => void;
 	getSelectAllLabel: () => string;
 	selectAllChecked: boolean;