diff --git a/packages/react-ui/components/Autocomplete/Autocomplete.tsx b/packages/react-ui/components/Autocomplete/Autocomplete.tsx
index 0f7d9923970..0e87567b393 100644
--- a/packages/react-ui/components/Autocomplete/Autocomplete.tsx
+++ b/packages/react-ui/components/Autocomplete/Autocomplete.tsx
@@ -4,7 +4,7 @@ import PropTypes from 'prop-types';
 import { ThemeContext } from '../../lib/theming/ThemeContext';
 import { Theme } from '../../lib/theming/Theme';
 import { isKeyArrowDown, isKeyArrowUp, isKeyEnter, isKeyEscape } from '../../lib/events/keyboard/identifiers';
-import { Input, InputProps } from '../Input';
+import { Input, InputProps, InputSize } from '../Input';
 import { DropdownContainer } from '../../internal/DropdownContainer';
 import { Menu } from '../../internal/Menu';
 import { MenuItem } from '../MenuItem';
@@ -101,7 +101,7 @@ export class Autocomplete extends React.Component<AutocompleteProps, Autocomplet
 
   public static defaultProps = {
     renderItem,
-    size: 'small',
+    size: 'small' as InputSize,
     disablePortal: false,
     hasShadow: true,
     menuMaxHeight: 300,
diff --git a/packages/react-ui/components/Center/Center.tsx b/packages/react-ui/components/Center/Center.tsx
index 71a1b944106..4c6cd7b5a24 100644
--- a/packages/react-ui/components/Center/Center.tsx
+++ b/packages/react-ui/components/Center/Center.tsx
@@ -31,7 +31,7 @@ export class Center extends React.Component<CenterProps> {
   public static __KONTUR_REACT_UI__ = 'Center';
 
   public static defaultProps = {
-    align: 'center',
+    align: 'center' as HorizontalAlign,
   };
   private setRootNode!: TSetRootNode;
 
diff --git a/packages/react-ui/components/CurrencyInput/CurrencyInput.tsx b/packages/react-ui/components/CurrencyInput/CurrencyInput.tsx
index 99b21056745..59bbbda7241 100644
--- a/packages/react-ui/components/CurrencyInput/CurrencyInput.tsx
+++ b/packages/react-ui/components/CurrencyInput/CurrencyInput.tsx
@@ -87,7 +87,6 @@ export class CurrencyInput extends React.PureComponent<CurrencyInputProps, Curre
     fractionDigits: 2,
     hideTrailingZeros: false,
     value: null,
-    inputMode: 'decimal',
   };
 
   public state: CurrencyInputState = {
diff --git a/packages/react-ui/components/DatePicker/DatePicker.tsx b/packages/react-ui/components/DatePicker/DatePicker.tsx
index 8bc77bb5a2b..555c3f923be 100644
--- a/packages/react-ui/components/DatePicker/DatePicker.tsx
+++ b/packages/react-ui/components/DatePicker/DatePicker.tsx
@@ -30,7 +30,7 @@ const INPUT_PASS_PROPS = {
 
 export const MIN_WIDTH = 120;
 
-export interface DatePickerProps<T> extends CommonProps {
+export interface DatePickerProps<T = string> extends CommonProps {
   autoFocus?: boolean;
   disabled?: boolean;
   enableTodayLink?: boolean;
diff --git a/packages/react-ui/components/DropdownMenu/DropdownMenu.tsx b/packages/react-ui/components/DropdownMenu/DropdownMenu.tsx
index 5396d8f2bc0..9eeacb3e58f 100644
--- a/packages/react-ui/components/DropdownMenu/DropdownMenu.tsx
+++ b/packages/react-ui/components/DropdownMenu/DropdownMenu.tsx
@@ -65,7 +65,7 @@ export class DropdownMenu extends React.Component<DropdownMenuProps> {
 
   public static defaultProps = {
     disableAnimations: isTestEnv,
-    positions: ['bottom left', 'bottom right', 'top left', 'top right'],
+    positions: ['bottom left', 'bottom right', 'top left', 'top right'] as PopupPositionsType[],
   };
 
   private popupMenu: Nullable<PopupMenu> = null;
diff --git a/packages/react-ui/components/FxInput/FxInput.tsx b/packages/react-ui/components/FxInput/FxInput.tsx
index b7fa770025a..d7113130629 100644
--- a/packages/react-ui/components/FxInput/FxInput.tsx
+++ b/packages/react-ui/components/FxInput/FxInput.tsx
@@ -45,7 +45,7 @@ export class FxInput extends React.Component<FxInputProps> {
 
   public static defaultProps = {
     width: 250,
-    type: 'text',
+    type: 'text' as 'currency' | InputProps['type'],
     value: '',
   };
 
diff --git a/packages/react-ui/components/Input/Input.tsx b/packages/react-ui/components/Input/Input.tsx
index 9a2efea4529..76476a641dd 100644
--- a/packages/react-ui/components/Input/Input.tsx
+++ b/packages/react-ui/components/Input/Input.tsx
@@ -115,10 +115,8 @@ export interface InputState {
 export class Input extends React.Component<InputProps, InputState> {
   public static __KONTUR_REACT_UI__ = 'Input';
 
-  public static defaultProps: {
-    size: InputSize;
-  } = {
-    size: 'small',
+  public static defaultProps = {
+    size: 'small' as InputSize,
   };
 
   public state: InputState = {
diff --git a/packages/react-ui/components/Kebab/Kebab.tsx b/packages/react-ui/components/Kebab/Kebab.tsx
index 5679f3f2938..35feab6a113 100644
--- a/packages/react-ui/components/Kebab/Kebab.tsx
+++ b/packages/react-ui/components/Kebab/Kebab.tsx
@@ -66,7 +66,7 @@ export class Kebab extends React.Component<KebabProps, KebabState> {
   public static defaultProps = {
     onOpen: () => undefined,
     onClose: () => undefined,
-    positions: ['bottom left', 'bottom right', 'top left', 'top right'],
+    positions: ['bottom left', 'bottom right', 'top left', 'top right'] as PopupPositionsType[],
     size: 'small',
     disableAnimations: isTestEnv,
     icon: <MenuKebabIcon />,
diff --git a/packages/react-ui/components/PasswordInput/PasswordInput.tsx b/packages/react-ui/components/PasswordInput/PasswordInput.tsx
index 2d8e9b946f8..e7b16207252 100644
--- a/packages/react-ui/components/PasswordInput/PasswordInput.tsx
+++ b/packages/react-ui/components/PasswordInput/PasswordInput.tsx
@@ -3,7 +3,7 @@ import PropTypes from 'prop-types';
 
 import { isKeyCapsLock } from '../../lib/events/keyboard/identifiers';
 import { KeyboardEventCodes as Codes } from '../../lib/events/keyboard/KeyboardEventCodes';
-import { Input, InputProps } from '../Input';
+import { Input, InputProps, InputSize } from '../Input';
 import { Nullable } from '../../typings/utility-types';
 import { EyeClosedIcon, EyeOpenedIcon } from '../../internal/icons/16px';
 import { isIE11 } from '../../lib/client';
@@ -39,7 +39,7 @@ export class PasswordInput extends React.PureComponent<PasswordInputProps, Passw
   };
 
   public static defaultProps = {
-    size: 'small',
+    size: 'small' as InputSize,
   };
 
   public state: PasswordInputState = {
diff --git a/packages/react-ui/components/ScrollContainer/ScrollContainer.tsx b/packages/react-ui/components/ScrollContainer/ScrollContainer.tsx
index fd124d7843b..204fab7544c 100644
--- a/packages/react-ui/components/ScrollContainer/ScrollContainer.tsx
+++ b/packages/react-ui/components/ScrollContainer/ScrollContainer.tsx
@@ -59,7 +59,7 @@ export class ScrollContainer extends React.Component<ScrollContainerProps> {
 
   public static defaultProps = {
     invert: false,
-    scrollBehaviour: 'auto',
+    scrollBehaviour: 'auto' as ScrollBehaviour,
     preventWindowScroll: false,
   };
 
diff --git a/packages/react-ui/components/Select/Select.tsx b/packages/react-ui/components/Select/Select.tsx
index 964466f4948..621574e741e 100644
--- a/packages/react-ui/components/Select/Select.tsx
+++ b/packages/react-ui/components/Select/Select.tsx
@@ -181,7 +181,7 @@ export class Select<TValue = {}, TItem = {}> extends React.Component<SelectProps
     renderItem,
     areValuesEqual,
     filterItem,
-    use: 'default',
+    use: 'default' as ButtonUse,
   };
 
   public static Item = Item;
diff --git a/packages/react-ui/components/Spinner/Spinner.tsx b/packages/react-ui/components/Spinner/Spinner.tsx
index 0dba42c47ff..0ec119d2b50 100644
--- a/packages/react-ui/components/Spinner/Spinner.tsx
+++ b/packages/react-ui/components/Spinner/Spinner.tsx
@@ -68,7 +68,7 @@ export class Spinner extends React.Component<SpinnerProps> {
   };
 
   public static defaultProps: SpinnerProps = {
-    type: 'normal',
+    type: 'normal' as SpinnerType,
   };
 
   public static Types: typeof types = types;
diff --git a/packages/react-ui/components/TokenInput/TokenInput.tsx b/packages/react-ui/components/TokenInput/TokenInput.tsx
index b54b8ee2eb8..9e2493e9302 100644
--- a/packages/react-ui/components/TokenInput/TokenInput.tsx
+++ b/packages/react-ui/components/TokenInput/TokenInput.tsx
@@ -188,8 +188,8 @@ export class TokenInput<T = string> extends React.PureComponent<TokenInputProps<
     onFocus: emptyHandler,
     onMouseEnter: emptyHandler,
     onMouseLeave: emptyHandler,
-    menuWidth: 'auto',
-    menuAlign: 'cursor',
+    menuWidth: 'auto' as React.CSSProperties['width'],
+    menuAlign: 'cursor' as TokenInputMenuAlign,
   };
 
   public state: TokenInputState<T> = DefaultState;
diff --git a/packages/react-ui/components/Tooltip/Tooltip.tsx b/packages/react-ui/components/Tooltip/Tooltip.tsx
index f76feceda1e..7cad04a25e8 100644
--- a/packages/react-ui/components/Tooltip/Tooltip.tsx
+++ b/packages/react-ui/components/Tooltip/Tooltip.tsx
@@ -166,12 +166,11 @@ export class Tooltip extends React.PureComponent<TooltipProps, TooltipState> {
   };
 
   public static defaultProps = {
-    pos: DefaultPosition,
-    trigger: 'hover',
+    pos: DefaultPosition as PopupPositionsType,
+    trigger: 'hover' as TooltipTrigger,
     allowedPositions: Positions,
     disableAnimations: isTestEnv,
     useWrapper: false,
-    closeOnChildrenMouseLeave: false,
   };
 
   public static delay = 100;
diff --git a/packages/react-ui/internal/Calendar/Calendar.tsx b/packages/react-ui/internal/Calendar/Calendar.tsx
index 836cc7116d6..904be850945 100644
--- a/packages/react-ui/internal/Calendar/Calendar.tsx
+++ b/packages/react-ui/internal/Calendar/Calendar.tsx
@@ -49,17 +49,16 @@ export class Calendar extends React.Component<CalendarProps, CalendarState> {
   public static __KONTUR_REACT_UI__ = 'Calendar';
 
   public static defaultProps = {
-    holidays: [],
     minDate: {
       year: MIN_YEAR,
       month: MIN_MONTH,
       date: MIN_DATE,
-    },
+    } as CalendarDateShape,
     maxDate: {
       year: MAX_YEAR,
       month: MAX_MONTH,
       date: MAX_DATE,
-    },
+    } as CalendarDateShape,
   };
 
   private theme!: Theme;
diff --git a/packages/react-ui/internal/InputLikeText/InputLikeText.tsx b/packages/react-ui/internal/InputLikeText/InputLikeText.tsx
index f3f67cd6265..8c11646bd26 100644
--- a/packages/react-ui/internal/InputLikeText/InputLikeText.tsx
+++ b/packages/react-ui/internal/InputLikeText/InputLikeText.tsx
@@ -6,7 +6,7 @@ import { MouseDrag, MouseDragEventHandler } from '../../lib/events/MouseDrag';
 import { isEdge, isIE11, isMobile } from '../../lib/client';
 import { Nullable } from '../../typings/utility-types';
 import { removeAllSelections, selectNodeContents } from '../../components/DateInput/helpers/SelectionHelpers';
-import { InputProps, InputIconType, InputState } from '../../components/Input';
+import { InputProps, InputIconType, InputState, InputSize } from '../../components/Input';
 import { styles as jsInputStyles } from '../../components/Input/Input.styles';
 import { ThemeContext } from '../../lib/theming/ThemeContext';
 import { Theme } from '../../lib/theming/Theme';
@@ -34,7 +34,7 @@ export type InputLikeTextState = Omit<InputState, 'polyfillPlaceholder'>;
 export class InputLikeText extends React.Component<InputLikeTextProps, InputLikeTextState> {
   public static __KONTUR_REACT_UI__ = 'InputLikeText';
 
-  public static defaultProps = { size: 'small' };
+  public static defaultProps = { size: 'small' as InputSize };
 
   public state = { blinking: false, focused: false };
 
diff --git a/packages/react-ui/internal/Popup/Popup.tsx b/packages/react-ui/internal/Popup/Popup.tsx
index 88504a7535f..c037c86bd8c 100644
--- a/packages/react-ui/internal/Popup/Popup.tsx
+++ b/packages/react-ui/internal/Popup/Popup.tsx
@@ -181,7 +181,7 @@ export class Popup extends React.Component<PopupProps, PopupState> {
     disableAnimations: isTestEnv,
     useWrapper: false,
     ignoreHover: false,
-    width: 'auto',
+    width: 'auto' as React.CSSProperties['width'],
   };
 
   public state: PopupState = { location: this.props.opened ? DUMMY_LOCATION : null };
diff --git a/packages/react-ui/internal/ZIndex/ZIndex.tsx b/packages/react-ui/internal/ZIndex/ZIndex.tsx
index e7555a39d24..760e4cac0f4 100644
--- a/packages/react-ui/internal/ZIndex/ZIndex.tsx
+++ b/packages/react-ui/internal/ZIndex/ZIndex.tsx
@@ -31,7 +31,7 @@ export class ZIndex extends React.Component<ZIndexProps> {
   public static defaultProps = {
     delta: 10,
     priority: 0,
-    style: {},
+    style: {} as React.CSSProperties,
     applyZIndex: true,
     coverChildren: false,
     createStackingContext: false,