diff --git a/app/common/constants.js b/app/common/constants.js
index d3e9481e1..09a443966 100644
--- a/app/common/constants.js
+++ b/app/common/constants.js
@@ -55,7 +55,7 @@ export const CHANGELOG_URL = 'https://changelog.insomnia.rest/changelog.json';
 export const CHANGELOG_PAGE = 'https://insomnia.rest/changelog/';
 export const STATUS_CODE_PLUGIN_ERROR = -222;
 export const LARGE_RESPONSE_MB = 5;
-export const FLEXIBLE_URL_REGEX = /^(http|https):\/\/[0-9a-zA-Z\-_.]+[/\w.\-+=:\][@%^*&!#?;]*/;
+export const FLEXIBLE_URL_REGEX = /^(http|https):\/\/[\wàâäèéêëîïôóœùûüÿçÀÂÄÈÉÊËÎÏÔŒÙÛÜŸÇ\-_.]+[/\wàâäèéêëîïôóœùûüÿçÀÂÄÈÉÊËÎÏÔŒÙÛÜŸÇ.\-+=:\][@%^*&!#?;]*/;
 export const CHECK_FOR_UPDATES_INTERVAL = 1000 * 60 * 60 * 3; // 3 hours
 export const PLUGIN_PATH = path.join((electron.remote || electron).app.getPath('userData'), 'plugins');