diff --git a/components/icon-picker/icon-picker-toolbar-button.js b/components/icon-picker/icon-picker-toolbar-button.tsx
similarity index 51%
rename from components/icon-picker/icon-picker-toolbar-button.js
rename to components/icon-picker/icon-picker-toolbar-button.tsx
index 76b5111d..33ef706e 100644
--- a/components/icon-picker/icon-picker-toolbar-button.js
+++ b/components/icon-picker/icon-picker-toolbar-button.tsx
@@ -1,9 +1,8 @@
-import PropTypes from 'prop-types';
 import { __ } from '@wordpress/i18n';
 import { Dropdown, ToolbarButton } from '@wordpress/components';
 import styled from '@emotion/styled';
 
-import { IconPicker } from './icon-picker';
+import { IconPicker, IconPickerProps } from './icon-picker';
 import { Icon } from './icon';
 
 const StyledIconPickerDropdown = styled(IconPicker)`
@@ -12,17 +11,15 @@ const StyledIconPickerDropdown = styled(IconPicker)`
 	height: 248px;
 `;
 
-/**
- * IconPickerToolbarButton
- *
- * @typedef IconPickerToolbarButtonProps
- * @property {string} buttonLabel label
- *
- * @param {IconPickerToolbarButtonProps} props IconPickerToolbarButtonProps
- * @returns {*}
- */
-export const IconPickerToolbarButton = (props) => {
-	const { value, buttonLabel } = props;
+interface IconPickerToolbarButtonProps extends IconPickerProps {
+	/**
+	 * Label for the button
+	 */
+	buttonLabel?: string;
+}
+
+export const IconPickerToolbarButton: React.FC<IconPickerToolbarButtonProps> = (props) => {
+	const { value, buttonLabel = __('Select Icon') } = props;
 
 	const buttonIcon =
 		value?.name && value?.iconSet ? <Icon name={value?.name} iconSet={value?.iconSet} /> : null;
@@ -35,20 +32,18 @@ export const IconPickerToolbarButton = (props) => {
 				placement: 'bottom-start',
 			}}
 			renderToggle={({ isOpen, onToggle }) => (
-				<ToolbarButton onClick={onToggle} aria-expanded={isOpen} icon={buttonIcon}>
-					{buttonLabel ?? __('Select Icon')}
+				<ToolbarButton
+					onClick={ onToggle }
+					aria-expanded={ isOpen }
+					icon={ buttonIcon }
+					placeholder={ undefined }
+					onPointerEnterCapture={ undefined }
+					onPointerLeaveCapture={ undefined }
+				>
+					{ buttonLabel }
 				</ToolbarButton>
 			)}
 			renderContent={() => <StyledIconPickerDropdown {...props} />}
 		/>
 	);
 };
-
-IconPickerToolbarButton.defaultProps = {
-	buttonLabel: __('Select Icon'),
-};
-
-IconPickerToolbarButton.propTypes = {
-	buttonLabel: PropTypes.string,
-	value: PropTypes.object.isRequired,
-};
diff --git a/components/icon-picker/icon-picker.js b/components/icon-picker/icon-picker.tsx
similarity index 62%
rename from components/icon-picker/icon-picker.js
rename to components/icon-picker/icon-picker.tsx
index 5818a01e..a181167a 100644
--- a/components/icon-picker/icon-picker.js
+++ b/components/icon-picker/icon-picker.tsx
@@ -1,4 +1,3 @@
-import PropTypes from 'prop-types';
 import styled from '@emotion/styled';
 import { __ } from '@wordpress/i18n';
 import {
@@ -29,9 +28,9 @@ const StyledIconGrid = styled(Grid)`
 `;
 
 const StyledIconButton = styled(Icon)`
-	background-color: ${({ selected }) => (selected ? 'black' : 'white')};
-	color: ${({ selected }) => (selected ? 'white' : 'black')};
-	fill: ${({ selected }) => (selected ? 'white' : 'black')};
+	background-color: ${({ selected } : { selected: boolean }) => (selected ? 'black' : 'white')};
+	color: ${({ selected } : { selected: boolean }) => (selected ? 'white' : 'black')};
+	fill: ${({ selected } : { selected: boolean }) => (selected ? 'white' : 'black')};
 	padding: 5px;
 	border: none;
 	border-radius: 4px;
@@ -54,19 +53,19 @@ const StyledIconButton = styled(Icon)`
 	}
 `;
 
-/**
- * IconPicker
- *
- * @typedef IconPickerProps
- * @property {object} value value of the selected icon
- * @property {Function} onChange change handler for when a new icon is selected
- * @property {string} label label of the icon picker
- *
- * @param {IconPickerProps} props IconPicker Props
- * @returns {*} React Element
- */
-export const IconPicker = (props) => {
-	const { value, onChange, label, ...rest } = props;
+export type IconPickerProps = Omit<React.ComponentProps<typeof BaseControl>, 'children'> & {
+	/**
+	 * Value of the selected icon
+	 */
+	value: { name: string; iconSet: string };
+	/**
+	 * Change handler for when a new icon is selected
+	 */
+	onChange: (icon: { name: string; iconSet: string }) => void;
+}
+
+export const IconPicker: React.FC<IconPickerProps> = (props) => {
+	const { value, onChange, label = '', ...rest } = props;
 
 	const icons = useIcons();
 
@@ -90,16 +89,6 @@ export const IconPicker = (props) => {
 	);
 };
 
-IconPicker.defaultProps = {
-	label: '',
-};
-
-IconPicker.propTypes = {
-	value: PropTypes.object.isRequired,
-	onChange: PropTypes.func.isRequired,
-	label: PropTypes.string,
-};
-
 /**
  * TooltipContent
  *
@@ -109,7 +98,7 @@ IconPicker.propTypes = {
  * workaround for that. It will just wrap the children in a div and pass that to the
  * Tooltip component.
  */
-const TooltipContent = forwardRef(function TooltipContent(props, ref) {
+const TooltipContent = forwardRef<HTMLDivElement, React.ComponentPropsWithoutRef<'div'>>(function TooltipContent(props, ref) {
 	const { children } = props;
 
 	return (
@@ -119,17 +108,18 @@ const TooltipContent = forwardRef(function TooltipContent(props, ref) {
 	);
 });
 
-/**
- * IconLabel
- *
- * @typedef IconLabelProps
- * @property {object} icon icon object
- * @property {boolean} isChecked whether the icon is checked
- *
- * @param {IconLabelProps} props IconLabel Props
- * @returns {*} React Element
- */
-const IconLabel = (props) => {
+interface IconLabelProps {
+	/**
+	 * Icon object
+	 */
+	icon: { name: string; iconSet: string; label: string };
+	/**
+	 * Whether the icon is checked
+	 */
+	isChecked: boolean;
+}
+
+const IconLabel: React.FC<IconLabelProps> = (props) => {
 	const { icon, isChecked } = props;
 	return (
 		<Tooltip text={icon.label}>
@@ -145,14 +135,32 @@ const IconLabel = (props) => {
 	);
 };
 
-IconLabel.propTypes = {
-	icon: PropTypes.object.isRequired,
-	isChecked: PropTypes.bool.isRequired,
-};
-
-const IconGridItem = memo((props) => {
+interface IconGridItemProps {
+	/**
+	 * Column index
+	 */
+	columnIndex: number;
+	/**
+	 * Row index
+	 */
+	rowIndex: number;
+	/**
+	 * Style object
+	 */
+	style: React.CSSProperties;
+	/**
+	 * Data object
+	 */
+	data: unknown;
+}
+
+const IconGridItem = memo<IconGridItemProps>((props) => {
 	const { columnIndex, rowIndex, style, data } = props;
-	const { icons, selectedIcon, onChange } = data;
+	const { icons, selectedIcon, onChange } = data as {
+		icons: { name: string; iconSet: string; label: string }[];
+		selectedIcon: { name: string; iconSet: string };
+		onChange: (icon: { name: string; iconSet: string }) => void;
+	};
 	const index = rowIndex * 5 + columnIndex;
 	const icon = icons[index];
 	const isChecked = selectedIcon?.name === icon?.name && selectedIcon?.iconSet === icon?.iconSet;
@@ -161,11 +169,14 @@ const IconGridItem = memo((props) => {
 		return null;
 	}
 
+	// We need to cast the IconLabel to a string because types in WP are not correct
+	const label = <IconLabel isChecked={isChecked} icon={icon} /> as unknown as string;
+
 	return (
 		<div style={style}>
 			<CheckboxControl
 				key={icon.name}
-				label={<IconLabel isChecked={isChecked} icon={icon} />}
+				label={label}
 				checked={isChecked}
 				onChange={() => onChange(icon)}
 				className="component-icon-picker__checkbox-control"
@@ -174,7 +185,22 @@ const IconGridItem = memo((props) => {
 	);
 }, areEqual);
 
-const IconGrid = (props) => {
+interface IconGridProps {
+	/**
+	 * List of icons
+	 */
+	icons: { name: string; iconSet: string; label: string }[];
+	/**
+	 * Selected icon
+	 */
+	selectedIcon: { name: string; iconSet: string };
+	/**
+	 * Change handler for when a new icon is selected
+	 */
+	onChange: (icon: { name: string; iconSet: string }) => void;
+}
+
+const IconGrid: React.FC<IconGridProps> = (props) => {
 	const { icons, selectedIcon, onChange } = props;
 
 	const itemData = useMemo(
@@ -198,9 +224,3 @@ const IconGrid = (props) => {
 		</NavigableMenu>
 	);
 };
-
-IconGrid.propTypes = {
-	icons: PropTypes.array.isRequired,
-	selectedIcon: PropTypes.object.isRequired,
-	onChange: PropTypes.func.isRequired,
-};
diff --git a/components/icon-picker/icon.js b/components/icon-picker/icon.tsx
similarity index 57%
rename from components/icon-picker/icon.js
rename to components/icon-picker/icon.tsx
index 4c1d24e9..6b2b65d9 100644
--- a/components/icon-picker/icon.js
+++ b/components/icon-picker/icon.tsx
@@ -1,28 +1,33 @@
-import PropTypes from 'prop-types';
 import { Spinner } from '@wordpress/components';
 import { forwardRef } from '@wordpress/element';
 import { useIcon } from '../../hooks/use-icons';
 
-/**
- * Icon
- *
- * @typedef IconProps
- * @property {string } name name of the icon
- * @property {string } iconSet name of the icon set
- *
- * @param {IconProps} props IconProps
- * @returns {*}
- */
-export const Icon = forwardRef(function Icon(props, ref) {
+interface IconProps {
+	/**
+	 * Name of the icon
+	 */
+	name: string;
+	/**
+	 * Name of the icon set
+	 */
+	iconSet: string;
+	/**
+	 * Click handler
+	 */
+	onClick?: () => void;
+}
+
+export const Icon: React.FC<IconProps> = forwardRef<HTMLDivElement, IconProps>(function Icon(props, ref) {
 	const { name, iconSet, onClick, ...rest } = props;
 	const icon = useIcon(iconSet, name);
 
-	if (!icon) {
+	if (!icon || Array.isArray(icon)) {
+		// @ts-ignore -- Types on WP seem to require onPointerEnterCapture and onPointerLeaveCapture
 		return <Spinner />;
 	}
 
 	// only add interactive props to component if a onClick handler was provided
-	const iconProps = {};
+	const iconProps: React.JSX.IntrinsicElements['div'] = {};
 	if (typeof onClick === 'function') {
 		iconProps.role = 'button';
 		iconProps.tabIndex = 0;
@@ -35,13 +40,3 @@ export const Icon = forwardRef(function Icon(props, ref) {
 		<div {...iconProps} dangerouslySetInnerHTML={{ __html: icon.source }} {...rest} ref={ref} />
 	);
 });
-
-Icon.defaultProps = {
-	onClick: undefined,
-};
-
-Icon.propTypes = {
-	name: PropTypes.string.isRequired,
-	onClick: PropTypes.func,
-	iconSet: PropTypes.string.isRequired,
-};
diff --git a/components/icon-picker/index.js b/components/icon-picker/index.tsx
similarity index 100%
rename from components/icon-picker/index.js
rename to components/icon-picker/index.tsx
diff --git a/components/icon-picker/inline-icon-picker.js b/components/icon-picker/inline-icon-picker.tsx
similarity index 59%
rename from components/icon-picker/inline-icon-picker.js
rename to components/icon-picker/inline-icon-picker.tsx
index 64513f56..350c9e68 100644
--- a/components/icon-picker/inline-icon-picker.js
+++ b/components/icon-picker/inline-icon-picker.tsx
@@ -1,9 +1,8 @@
-import PropTypes from 'prop-types';
 import styled from '@emotion/styled';
 import { Dropdown } from '@wordpress/components';
 import { useCallback } from '@wordpress/element';
 
-import { IconPicker } from './icon-picker';
+import { IconPicker, IconPickerProps } from './icon-picker';
 import { Icon } from './icon';
 
 const StyledIconPickerDropdown = styled(IconPicker)`
@@ -12,36 +11,29 @@ const StyledIconPickerDropdown = styled(IconPicker)`
 	height: 248px;
 `;
 
-/**
- * InlineIconPicker
- *
- * @typedef InlineIconPickerProps
- * @property {string} buttonLabel label
- *
- * @param {InlineIconPickerProps} props InlineIconPickerProps
- * @returns {*}
- */
-export const InlineIconPicker = (props) => {
+export const InlineIconPicker: React.FC<IconPickerProps> = (props) => {
 	const { value, ...rest } = props;
 	const IconButton = useCallback(
-		({ onToggle }) => (
+		({ onToggle }: {
+			onToggle: () => void;
+		}) => (
 			<Icon name={value?.name} iconSet={value?.iconSet} onClick={onToggle} {...rest} />
 		),
 		[value, rest],
 	);
 
-	IconButton.propTypes = {
-		onToggle: PropTypes.func.isRequired,
-	};
-
 	return <IconPickerDropdown renderToggle={IconButton} {...props} />;
 };
 
-InlineIconPicker.propTypes = {
-	value: PropTypes.object.isRequired,
-};
+interface InlineIconPickerProps extends IconPickerProps {
+	/**
+	 * Render function for the toggle button
+	 * @param props
+	 */
+	renderToggle: (props: { onToggle: () => void }) => React.JSX.Element;
+}
 
-export const IconPickerDropdown = (props) => {
+export const IconPickerDropdown: React.FC<InlineIconPickerProps> = (props) => {
 	const { renderToggle, ...iconPickerProps } = props;
 	return (
 		<Dropdown
@@ -53,7 +45,3 @@ export const IconPickerDropdown = (props) => {
 		/>
 	);
 };
-
-IconPickerDropdown.propTypes = {
-	renderToggle: PropTypes.func.isRequired,
-};
diff --git a/example/src/blocks/icon-picker-example/edit.tsx b/example/src/blocks/icon-picker-example/edit.tsx
index 40e3a292..11570b00 100644
--- a/example/src/blocks/icon-picker-example/edit.tsx
+++ b/example/src/blocks/icon-picker-example/edit.tsx
@@ -18,7 +18,10 @@ export function BlockEdit(props) {
     const { icon } = attributes;
     const blockProps = useBlockProps();
 
-    const handleIconSelection = value => setAttributes({icon: { name: value.name, iconSet: value.iconSet }});
+    const handleIconSelection = (value: {
+        name: string;
+        iconSet: string;
+    }) => setAttributes({icon: { name: value.name, iconSet: value.iconSet }});
 
     return (
         <>
@@ -44,4 +47,4 @@ export function BlockEdit(props) {
             </div>
         </>
     )
-}
\ No newline at end of file
+}
diff --git a/package-lock.json b/package-lock.json
index bd2d33e4..d8b06d11 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -31,6 +31,7 @@
       "devDependencies": {
         "@10up/cypress-wp-utils": "github:10up/cypress-wp-utils#build",
         "@types/jest": "^29.5.12",
+        "@types/react-window": "^1.8.8",
         "@wordpress/core-data": "^6.34.0",
         "@wordpress/data": "^9.27.0",
         "@wordpress/dependency-extraction-webpack-plugin": "^5.8.0",
@@ -6310,6 +6311,15 @@
         "@types/react": "*"
       }
     },
+    "node_modules/@types/react-window": {
+      "version": "1.8.8",
+      "resolved": "https://registry.npmjs.org/@types/react-window/-/react-window-1.8.8.tgz",
+      "integrity": "sha512-8Ls660bHR1AUA2kuRvVG9D/4XpRC6wjAaPT9dil7Ckc76eP9TKWZwwmgfq8Q1LANX3QNDnoU4Zp48A3w+zK69Q==",
+      "dev": true,
+      "dependencies": {
+        "@types/react": "*"
+      }
+    },
     "node_modules/@types/responselike": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/@types/responselike/-/responselike-1.0.3.tgz",
diff --git a/package.json b/package.json
index f2a96c89..2763b431 100644
--- a/package.json
+++ b/package.json
@@ -64,6 +64,7 @@
   "devDependencies": {
     "@10up/cypress-wp-utils": "github:10up/cypress-wp-utils#build",
     "@types/jest": "^29.5.12",
+    "@types/react-window": "^1.8.8",
     "@wordpress/core-data": "^6.34.0",
     "@wordpress/data": "^9.27.0",
     "@wordpress/dependency-extraction-webpack-plugin": "^5.8.0",