diff --git a/openpype/hosts/maya/plugins/publish/validate_ass_relative_paths.py b/openpype/hosts/maya/plugins/publish/validate_ass_relative_paths.py
index 3625d4ab32b..5fb9bd98b15 100644
--- a/openpype/hosts/maya/plugins/publish/validate_ass_relative_paths.py
+++ b/openpype/hosts/maya/plugins/publish/validate_ass_relative_paths.py
@@ -110,9 +110,9 @@ def maya_is_true(self, attr_val):
         Maya API will return a list of values, which need to be properly
         handled to evaluate properly.
         """
-        if isinstance(attr_val, types.BooleanType):
+        if isinstance(attr_val, bool):
             return attr_val
-        elif isinstance(attr_val, (types.ListType, types.GeneratorType)):
+        elif isinstance(attr_val, (list, types.GeneratorType)):
             return any(attr_val)
         else:
             return bool(attr_val)
diff --git a/openpype/hosts/maya/plugins/publish/validate_vray_referenced_aovs.py b/openpype/hosts/maya/plugins/publish/validate_vray_referenced_aovs.py
index 6cfbd4049b9..7a48c29b7d5 100644
--- a/openpype/hosts/maya/plugins/publish/validate_vray_referenced_aovs.py
+++ b/openpype/hosts/maya/plugins/publish/validate_vray_referenced_aovs.py
@@ -82,9 +82,9 @@ def maya_is_true(attr_val):
             bool: cast Maya attribute to Pythons boolean value.
 
         """
-        if isinstance(attr_val, types.BooleanType):
+        if isinstance(attr_val, bool):
             return attr_val
-        elif isinstance(attr_val, (types.ListType, types.GeneratorType)):
+        elif isinstance(attr_val, (list, types.GeneratorType)):
             return any(attr_val)
         else:
             return bool(attr_val)