diff --git a/system/Database/Postgre/Connection.php b/system/Database/Postgre/Connection.php
index 416d6e02f86f..2826ab1bf53c 100644
--- a/system/Database/Postgre/Connection.php
+++ b/system/Database/Postgre/Connection.php
@@ -149,8 +149,9 @@ private function convertDSN()
      */
     public function reconnect()
     {
-        if (pg_ping($this->connID) === false) {
-            $this->connID = false;
+        if ($this->connID === false || pg_ping($this->connID) === false) {
+            $this->close();
+            $this->initialize();
         }
     }
 
diff --git a/user_guide_src/source/changelogs/v4.5.6.rst b/user_guide_src/source/changelogs/v4.5.6.rst
index 1dbaf55f2482..9490e62e4e80 100644
--- a/user_guide_src/source/changelogs/v4.5.6.rst
+++ b/user_guide_src/source/changelogs/v4.5.6.rst
@@ -41,6 +41,7 @@ Bugs Fixed
 
 - **Validation:** Fixed a bug where complex language strings were not properly handled.
 - **CURLRequest:** Added support for handling proxy responses using HTTP versions other than 1.1.
+- **Database:** Fixed a bug that caused ``Postgre\Connection::reconnect()`` method to throw an error when the connection had not yet been established.
 
 See the repo's
 `CHANGELOG.md <https://github.com/codeigniter4/CodeIgniter4/blob/develop/CHANGELOG.md>`_