Bytedance, TikTok’s Chinese parent, has delayed the roll out of its shopping platform in the United States, according to a report by the Wall Street Journal on Wednesday, citing sources familiar with the matter.

The app is facing growing pressure in Washington including calls for ban by many in Congress who fear its US user data could fall into the hands of Chinese government.

The delay from early spring to June at the earliest comes as concerns over the short-form video platform’s future may prevent sellers from joining the shopping platform, the report said.