diff --git a/pollination_dsl/common.py b/pollination_dsl/common.py
index 28dd355..7430ffe 100644
--- a/pollination_dsl/common.py
+++ b/pollination_dsl/common.py
@@ -1,6 +1,5 @@
 from dataclasses import dataclass
 from typing import NamedTuple, Dict, List
-import importlib
 from collections import namedtuple
 import importlib_metadata
 import re
diff --git a/pollination_dsl/dag/base.py b/pollination_dsl/dag/base.py
index 271f7db..6a6e18e 100644
--- a/pollination_dsl/dag/base.py
+++ b/pollination_dsl/dag/base.py
@@ -103,7 +103,7 @@ def _dependencies(self):
         cls = self.__class__
         dag_package = self._package
         dependencies = {'plugin': [], 'recipe': [], 'dag': []}
-        for method_name, method in inspect.getmembers(cls):
+        for _, method in inspect.getmembers(cls):
             # try to get decorator
             qb_dec = getattr(method, '__decorator__', None)
             if qb_dec == 'task':
@@ -122,4 +122,12 @@ def _dependencies(self):
                     if tt._package not in dependencies['plugin']:
                         dependencies['plugin'].append(tt._package)
 
+        # add dependencies of dag dependencies
+        for dag in dependencies['dag']:
+            deps = dag._dependencies
+            for key, sub_deps in deps.items():
+                for v in sub_deps:
+                    if v not in dependencies[key]:
+                        dependencies[key].append(v)
+
         return dependencies