diff --git a/CHANGELOG.md b/CHANGELOG.md
index 76cfa25..456d0fb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -92,3 +92,5 @@ $ /usr/bin/env php bin/console darvin:utils:translations:title-case <pathname>
 - Move macros template to utils lib.
 
 - Move translations to utils lib.
+
+7.3.1: Simplify override configuration.
diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index afd7304..4f249e8 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -104,8 +104,13 @@ private function buildOverrideNode(): ArrayNodeDefinition
             ->prototype('array')->useAttributeAsKey('subject')
                 ->prototype('array')
                     ->children()
-                        ->arrayNode('entities')->prototype('scalar')->cannotBeEmpty()->end()->end()
-                        ->arrayNode('templates')->prototype('scalar')->cannotBeEmpty();
+                        ->arrayNode('entities')
+                            ->prototype('scalar')->cannotBeEmpty()->end()
+                            ->beforeNormalization()->castToArray()->end()
+                        ->end()
+                        ->arrayNode('templates')
+                            ->prototype('scalar')->cannotBeEmpty()->end()
+                            ->beforeNormalization()->castToArray();
 
         return $root;
     }