Vulnerable versions of third party libraries can remain a threat even after a security fix has been published. Developers are hesitant to update dependencies and could unknowingly depend on an outdated vulnerable library version. We developed SwiftDependencyChecker to make data from public vulnerability databases more accessible to Swift developers. SwiftDependencyChecker analyses dependencies declared through CocoaPods, Carthage and Swift PM, queries the NVD database, and shows warnings for used vulnerable library versions in Xcode. Preliminary evaluation of the tool showed that the vulnerability analysis is effective. General feedback from independent developers was encouraging with some improvement potential on performance for the initial analysis of a project.