Guzzle version issue

[donInLKA]

I have this err:
- signnow/rest-entity-manager[v2.0.0, ..., v2.1.0] require guzzlehttp/guzzle ^7.0.0 -> found guzzlehttp/guzzle[dev-master, 7.0.0-beta.1, ..., 7.4.x-dev (alias of dev-master)] but the package is fixed to 6.5.5 (lock file version) by a partial update and that version does not match. Make sure you list it as an argument for the update command.
- signnow/api-php-sdk v2.0.0 requires signnow/rest-entity-manager ^2.0.0 -> satisfiable by signnow/rest-entity-manager[v2.0.0, v2.1.0].
- Root composer.json requires signnow/api-php-sdk ^2.0 -> satisfiable by signnow/api-php-sdk[v2.0.0].

Our drupal core source is currently using guzzlehttp:6.5.5, can't upgrade to v7 or v6.2 v6.3, any advice?
Appreciate!

[falgonua]

@donInLKA hi. We will check signnow/api-php-sdk:1.x on guzzlehttp/guzzle:^v6.2. If works as expected we will change the required dependency for guzzlehttp/guzzle.

[falgonua]

@donInLKA, we released the required changes for guzzlehttp/guzzle. Try to install signnow/api-php-sdk:1.x