Shares of Bumble Inc. slid after hours on Tuesday after the dating app forecast first-quarter sales that missed Wall Street’s expectations, as it tries to reinvent itself to help users better connect.

Bumble expects its first-quarter revenue to be between $242 million and $248 million, below analysts' average estimate of $256.9 million, according to data compiled by LSEG. The Austin, Texas-based company's fourth-quarter revenue fell 4.4% to $261.6 million, compared with the estimate of $260.5 million.

Bumble forecast its first-quarter revenue below analysts' estimate on Tuesday, signaling that the dating app operator's efforts to boost growth are taking longer than expected, sending its shares down 16% in extended trading.

The online-dating company posted operating earnings of $37 million, compared with an operating loss of $6.9 million a year earlier.