i can't install in laravel 7

[mdsohelmia]

Problem 1
- Installation request for shipu/bkash ^1.0 -> satisfiable by shipu/bkash[v1.0.0].
- Conclusion: remove vlucas/phpdotenv v4.1.3
- Conclusion: don't install vlucas/phpdotenv v4.1.3
- shipu/bkash v1.0.0 requires vlucas/phpdotenv ^3.4 -> satisfiable by vlucas/phpdotenv[3.4.x-dev, 3.5.x-dev, 3.6.x-dev, v3.4.0, v3.5.0, v3.6.0, v3.6.1, v3.6.2].
- Can only install one of: vlucas/phpdotenv[3.4.x-dev, v4.1.3].
- Can only install one of: vlucas/phpdotenv[3.5.x-dev, v4.1.3].
- Can only install one of: vlucas/phpdotenv[3.6.x-dev, v4.1.3].
- Can only install one of: vlucas/phpdotenv[v3.4.0, v4.1.3].
- Can only install one of: vlucas/phpdotenv[v3.5.0, v4.1.3].
- Can only install one of: vlucas/phpdotenv[v3.6.0, v4.1.3].
- Can only install one of: vlucas/phpdotenv[v3.6.1, v4.1.3].
- Can only install one of: vlucas/phpdotenv[v3.6.2, v4.1.3].
- Installation request for vlucas/phpdotenv (locked at v4.1.3) -> satisfiable by vlucas/phpdotenv[v4.1.3].

[Shipu]

It's Fixed in v1.1.0