diff --git a/lib/src/validator.dart b/lib/src/validator.dart
index b2b925defb9579ef9c071d921612173a4dae26e7..22f907160c11302f91002110f1f07d8a7d6d6694 100644
--- a/lib/src/validator.dart
+++ b/lib/src/validator.dart
@@ -18,6 +18,7 @@ import 'validator/pubspec.dart';
 import 'validator/pubspec_field.dart';
 import 'validator/sdk_constraint.dart';
 import 'validator/size.dart';
+import 'validator/strict_dependencies.dart';
 import 'validator/utf8_readme.dart';
 
 /// The base class for validators that check whether a package is fit for
@@ -67,7 +68,8 @@ abstract class Validator {
       new ExecutableValidator(entrypoint),
       new CompiledDartdocValidator(entrypoint),
       new Utf8ReadmeValidator(entrypoint),
-      new SdkConstraintValidator(entrypoint)
+      new SdkConstraintValidator(entrypoint),
+      new StrictDependenciesValidator(entrypoint),
     ];
     if (packageSize != null) {
       validators.add(new SizeValidator(entrypoint, packageSize));