diff --git a/src/Phinx/Db/Adapter/PostgresAdapter.php b/src/Phinx/Db/Adapter/PostgresAdapter.php
index da79eb030..843cb8306 100644
--- a/src/Phinx/Db/Adapter/PostgresAdapter.php
+++ b/src/Phinx/Db/Adapter/PostgresAdapter.php
@@ -60,6 +60,17 @@ class PostgresAdapter extends PdoAdapter
      */
     protected bool $useIdentity;
 
+    /**
+     * {@inheritDoc}
+     */
+    public function setConnection(PDO $connection): AdapterInterface
+    {
+        // always set here since connect() isn't always called
+        $this->useIdentity = (float)$connection->getAttribute(PDO::ATTR_SERVER_VERSION) >= 10;
+
+        return parent::setConnection($connection);
+    }
+
     /**
      * {@inheritDoc}
      *
@@ -115,8 +126,6 @@ public function connect(): void
                 );
             }
 
-            $this->useIdentity = (float)$db->getAttribute(PDO::ATTR_SERVER_VERSION) >= 10;
-
             $this->setConnection($db);
         }
     }