diff --git a/CHANGELOG-5.0.md b/CHANGELOG-5.0.md
index 31a68018fe..2803c8984b 100644
--- a/CHANGELOG-5.0.md
+++ b/CHANGELOG-5.0.md
@@ -18,8 +18,6 @@
 
 ### Removed
 
-# Changelog
-
 ## [5.6.0](https://github.com/phalcon/cphalcon/releases/tag/v5.6.0) (2024-01-09)
 
 ### Changed
diff --git a/phalcon/Db/Adapter/Pdo/Postgresql.zep b/phalcon/Db/Adapter/Pdo/Postgresql.zep
index 43566cc710..a3a371bc5d 100644
--- a/phalcon/Db/Adapter/Pdo/Postgresql.zep
+++ b/phalcon/Db/Adapter/Pdo/Postgresql.zep
@@ -501,7 +501,7 @@ class Postgresql extends PdoAdapter
              */
             if field[9] !== null {
                 let definition["default"] = preg_replace(
-                    "/^'|'?::[[:alnum:][:space:]]+(\\[\\])?$/",
+                    "/^'|'?::[[:alnum:][:space:]]+$/",
                     "",
                     field[9]
                 );