diff --git a/action/_v2_config_template.py b/action/_v2_config_template.py
index 361c2a0..ff8c5c1 100644
--- a/action/_v2_config_template.py
+++ b/action/_v2_config_template.py
@@ -73,6 +73,11 @@ def _convert_2_string(item):
             return str(item)
 
 
+class IDumper(yaml.SafeDumper):
+    def increase_indent(self, flow=False, indentless=False):
+        return super(IDumper, self).increase_indent(flow, False)
+
+
 class MultiKeyDict(dict):
     """Dictionary class which supports duplicate keys.
     This class allows for an item to be added into a standard python dictionary
@@ -374,8 +379,9 @@ class ActionModule(ActionBase):
             new_items=config_overrides,
             list_extend=list_extend
         )
-        return yaml.safe_dump(
+        return yaml.dump(
             merged_resultant,
+            Dumper=IDumper,
             default_flow_style=False,
             width=1000,
         )
diff --git a/tests/files/test_extend.yml.expected b/tests/files/test_extend.yml.expected
index b81b2e3..c132a76 100644
--- a/tests/files/test_extend.yml.expected
+++ b/tests/files/test_extend.yml.expected
@@ -1,8 +1,8 @@
 list_one:
-- one
-- two
-- three
-- four
+  - one
+  - two
+  - three
+  - four
 list_two:
-- one
-- two
+  - one
+  - two
diff --git a/tests/files/test_no_extend.yml.expected b/tests/files/test_no_extend.yml.expected
index b864299..4713768 100644
--- a/tests/files/test_no_extend.yml.expected
+++ b/tests/files/test_no_extend.yml.expected
@@ -1,5 +1,5 @@
 list_one:
-- four
+  - four
 list_two:
-- one
-- two
+  - one
+  - two