diff --git a/packages/fluentui/react-northstar/src/themes/teams-forced-colors/componentStyles.ts b/packages/fluentui/react-northstar/src/themes/teams-forced-colors/componentStyles.ts
index 260ba6aebeead8..915ec27f2502e3 100644
--- a/packages/fluentui/react-northstar/src/themes/teams-forced-colors/componentStyles.ts
+++ b/packages/fluentui/react-northstar/src/themes/teams-forced-colors/componentStyles.ts
@@ -1,5 +1,6 @@
 export { buttonStyles as Button } from './components/Button/buttonStyles';
 export { checkboxStyles as Checkbox } from './components/Checkbox/checkboxStyles';
+export { dropdownStyles as Dropdown } from './components/Dropdown/dropdownStyles';
 export { dropdownItemStyles as DropdownItem } from './components/Dropdown/dropdownItemStyles';
 export { svgIconStyles as SvgIcon } from './components/SvgIcon/svgIconStyles';
 export { menuItemWrapperStyles as MenuItemWrapper } from './components/Menu/menuItemWrapperStyles';
diff --git a/packages/fluentui/react-northstar/src/themes/teams-forced-colors/components/Dropdown/dropdownStyles.ts b/packages/fluentui/react-northstar/src/themes/teams-forced-colors/components/Dropdown/dropdownStyles.ts
new file mode 100644
index 00000000000000..b8ad0f3579e42e
--- /dev/null
+++ b/packages/fluentui/react-northstar/src/themes/teams-forced-colors/components/Dropdown/dropdownStyles.ts
@@ -0,0 +1,9 @@
+import { ComponentSlotStylesPrepared } from '@fluentui/styles';
+import { DropdownStylesProps } from '../../../../components/Dropdown/Dropdown';
+import { DropdownVariables } from '../../../teams/components/Dropdown/dropdownVariables';
+
+export const dropdownStyles: ComponentSlotStylesPrepared<DropdownStylesProps, DropdownVariables> = {
+  triggerButton: () => ({
+    border: 'none', // there is already border around the whole Dropdown
+  }),
+};