diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2be0c8e..c427fda 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v1.X.Y
+* Use to_nice_json to manage packages list.
+
 ## v1.0
 
 ### Features
diff --git a/tasks/main.yml b/tasks/main.yml
index 774f13a..30697c7 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -11,7 +11,7 @@
                          else "absent" }}'
     install_recommends: False
   with_flattened:
-    - '{{ deb_sec__required_packages }}'
+    - '{{ deb_sec__required_packages | to_nice_json }}'
 # Debsecan [[[1
 # Configuration [[[
 - name: Debsecan configuration