Unable to upgrade @angular/core

[apumex]

ng update @angular/core
Package "ngx-breadcrumbs" has an incompatible peer dependency to "@angular/core" (requires ">=5.0.0-rc.0 <6.0.0||>=4.0.0 <5.0.0||>=4.0.0-beta <5.0.0", would install "6.0.5").
Package "ngx-breadcrumbs" has an incompatible peer dependency to "@angular/router" (requires ">=5.0.0-rc.0 <6.0.0||>=4.0.0 <5.0.0", would install "6.0.5").
Incompatible peer dependencies found. See above.

[dottodot]

Yes I'm having the same issue, this package needs updating to Angular 6. @McNull are you able to advise if and when this might happen.

[dottodot]

If it's any help I've done a fork which updates it to Angular 6, just needs checking and testing.

https://github.com/dottodot/ngx-breadcrumbs