diff --git a/.github/workflows/continuous_integration.yml b/.github/workflows/continuous_integration.yml
index fd9a46d21..45521375b 100644
--- a/.github/workflows/continuous_integration.yml
+++ b/.github/workflows/continuous_integration.yml
@@ -18,7 +18,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        qgis_version: [focal-3.16, 3.22-jammy, latest]
+        qgis_version: [3.22-jammy, 3.28-jammy, latest]
     env:
       QGIS_TEST_VERSION: ${{ matrix.qgis_version }}
     steps:
diff --git a/QgisModelBaker/gui/panel/db_config_panel.py b/QgisModelBaker/gui/panel/db_config_panel.py
index 2a55a01f8..31b570dde 100644
--- a/QgisModelBaker/gui/panel/db_config_panel.py
+++ b/QgisModelBaker/gui/panel/db_config_panel.py
@@ -38,7 +38,7 @@ class DbConfigPanel(QWidget, metaclass=AbstractQWidgetMeta):
     :type notify_field_modified: pyqtSignal(str)
     """
 
-    notify_fields_modified = pyqtSignal(str)
+    notify_fields_modified = pyqtSignal()
 
     def __init__(self, parent: QWidget, db_action_type: DbActionType):
         """
diff --git a/QgisModelBaker/gui/panel/gpkg_config_panel.py b/QgisModelBaker/gui/panel/gpkg_config_panel.py
index ee26a799e..cc7d2eea4 100644
--- a/QgisModelBaker/gui/panel/gpkg_config_panel.py
+++ b/QgisModelBaker/gui/panel/gpkg_config_panel.py
@@ -17,7 +17,6 @@
 """
 import logging
 
-from qgis.PyQt.QtCore import pyqtSignal
 from qgis.PyQt.QtGui import QValidator
 
 from QgisModelBaker.libs.modelbaker.utils.globals import DbActionType
@@ -41,8 +40,6 @@ class GpkgConfigPanel(DbConfigPanel, WIDGET_UI):
     :type notify_field_modified: pyqtSignal(str)
     """
 
-    notify_fields_modified = pyqtSignal(str)
-
     ValidExtensions = ["gpkg", "GPKG"]
 
     def __init__(self, parent, db_action_type):
diff --git a/QgisModelBaker/gui/panel/mssql_config_panel.py b/QgisModelBaker/gui/panel/mssql_config_panel.py
index 8b3f75a61..d5fa152a8 100644
--- a/QgisModelBaker/gui/panel/mssql_config_panel.py
+++ b/QgisModelBaker/gui/panel/mssql_config_panel.py
@@ -17,8 +17,6 @@
 """
 import logging
 
-from qgis.PyQt.QtCore import pyqtSignal
-
 from QgisModelBaker.libs.modelbaker.utils.globals import DbActionType
 from QgisModelBaker.libs.modelbaker.utils.qt_utils import (
     NonEmptyStringValidator,
@@ -33,9 +31,6 @@
 
 
 class MssqlConfigPanel(DbConfigPanel, WIDGET_UI):
-
-    notify_fields_modified = pyqtSignal(str)
-
     def __init__(self, parent, db_action_type):
         DbConfigPanel.__init__(self, parent, db_action_type)
         self.setupUi(self)
diff --git a/QgisModelBaker/gui/panel/pg_config_panel.py b/QgisModelBaker/gui/panel/pg_config_panel.py
index b229257f1..6f8a63590 100644
--- a/QgisModelBaker/gui/panel/pg_config_panel.py
+++ b/QgisModelBaker/gui/panel/pg_config_panel.py
@@ -19,9 +19,14 @@
 import logging
 from enum import IntEnum
 
-from qgis.PyQt.QtCore import Qt, pyqtSignal
+from qgis.PyQt.QtCore import Qt, QTimer
 
 import QgisModelBaker.libs.modelbaker.libs.pgserviceparser as pgserviceparser
+import QgisModelBaker.libs.modelbaker.utils.db_utils as db_utils
+from QgisModelBaker.libs.modelbaker.iliwrapper.globals import DbIliMode
+from QgisModelBaker.libs.modelbaker.iliwrapper.ili2dbconfig import (
+    Ili2DbCommandConfiguration,
+)
 from QgisModelBaker.libs.modelbaker.utils.globals import DbActionType
 from QgisModelBaker.libs.modelbaker.utils.qt_utils import (
     NonEmptyStringValidator,
@@ -52,7 +57,7 @@ class _SERVICE_COMBOBOX_ROLE(IntEnum):
         DBAUTHID = Qt.UserRole + 7
         SSLMODE = Qt.UserRole + 8
 
-    notify_fields_modified = pyqtSignal(str)
+    REFRESH_SCHEMAS_TIMEOUT_MS = 500
 
     def __init__(self, parent, db_action_type):
         DbConfigPanel.__init__(self, parent, db_action_type)
@@ -60,6 +65,10 @@ def __init__(self, parent, db_action_type):
 
         self._current_service = None
 
+        self._fill_schema_combo_box_timer = QTimer()
+        self._fill_schema_combo_box_timer.setSingleShot(True)
+        self._fill_schema_combo_box_timer.timeout.connect(self._fill_schema_combo_box)
+
         from QgisModelBaker.libs.modelbaker.iliwrapper.ili2dbconfig import (
             BaseConfiguration,
         )
@@ -81,7 +90,9 @@ def __init__(self, parent, db_action_type):
 
         self.pg_host_line_edit.setValidator(nonEmptyValidator)
         self.pg_database_line_edit.setValidator(nonEmptyValidator)
-        self.pg_schema_line_edit.setValidator(nonEmptyValidator)
+        self.pg_schema_combo_box.setValidator(nonEmptyValidator)
+
+        self.pg_schema_combo_box.setEditable(True)
 
         self.pg_host_line_edit.textChanged.connect(self.validators.validate_line_edits)
         self.pg_host_line_edit.textChanged.emit(self.pg_host_line_edit.text())
@@ -89,15 +100,14 @@ def __init__(self, parent, db_action_type):
             self.validators.validate_line_edits
         )
         self.pg_database_line_edit.textChanged.emit(self.pg_database_line_edit.text())
-        self.pg_schema_line_edit.textChanged.connect(
+        self.pg_schema_combo_box.lineEdit().textChanged.connect(
             self.validators.validate_line_edits
         )
-        self.pg_schema_line_edit.textChanged.emit(self.pg_host_line_edit.text())
 
-        self.pg_host_line_edit.textChanged.connect(self.notify_fields_modified)
-        self.pg_port_line_edit.textChanged.connect(self.notify_fields_modified)
-        self.pg_database_line_edit.textChanged.connect(self.notify_fields_modified)
-        self.pg_schema_line_edit.textChanged.connect(self.notify_fields_modified)
+        self.pg_host_line_edit.textChanged.connect(self._fields_modified)
+        self.pg_port_line_edit.textChanged.connect(self._fields_modified)
+        self.pg_database_line_edit.textChanged.connect(self._fields_modified)
+        self.pg_schema_combo_box.currentTextChanged.connect(self.notify_fields_modified)
 
         # Fill pg_services combo box
         self.pg_service_combo_box.addItem(self.tr("None"), None)
@@ -162,13 +172,18 @@ def __init__(self, parent, db_action_type):
         self._show_panel()
 
     def _show_panel(self):
+
+        self._fill_schema_combo_box()
+
         if (
             self._db_action_type == DbActionType.GENERATE
             or self._db_action_type == DbActionType.IMPORT_DATA
         ):
-            self.pg_schema_line_edit.setPlaceholderText(self.tr("Schema Name"))
+            self.pg_schema_combo_box.lineEdit().setPlaceholderText(
+                self.tr("Schema Name")
+            )
         elif self._db_action_type == DbActionType.EXPORT:
-            self.pg_schema_line_edit.setPlaceholderText(
+            self.pg_schema_combo_box.lineEdit().setPlaceholderText(
                 self.tr("[Enter a valid schema]")
             )
         else:
@@ -181,7 +196,7 @@ def get_fields(self, configuration):
         configuration.dbport = self.pg_port_line_edit.text().strip()
         configuration.dbusr = self.pg_auth_settings.username()
         configuration.database = self.pg_database_line_edit.text().strip()
-        configuration.dbschema = self.pg_schema_line_edit.text().strip().lower()
+        configuration.dbschema = self.pg_schema_combo_box.currentText().strip().lower()
         configuration.dbpwd = self.pg_auth_settings.password()
         configuration.dbauthid = self.pg_auth_settings.configId()
 
@@ -241,7 +256,7 @@ def set_fields(self, configuration):
         self.pg_port_line_edit.setText(configuration.dbport)
         self.pg_auth_settings.setUsername(configuration.dbusr)
         self.pg_database_line_edit.setText(configuration.database)
-        self.pg_schema_line_edit.setText(configuration.dbschema)
+        self.pg_schema_combo_box.setCurrentText(configuration.dbschema)
         self.pg_auth_settings.setPassword(configuration.dbpwd)
         self.pg_auth_settings.setConfigId(configuration.dbauthid)
 
@@ -300,7 +315,7 @@ def _pg_service_combo_box_changed(self):
             self.pg_port_line_edit.setText(service_config.get("port", ""))
             self.pg_auth_settings.setUsername(service_config.get("user", ""))
             self.pg_database_line_edit.setText(service_config.get("dbname", ""))
-            self.pg_schema_line_edit.setText("")
+            self.pg_schema_combo_box.setCurrentText("")
             self.pg_auth_settings.setPassword(service_config.get("password", ""))
             self.pg_auth_settings.setConfigId("")
 
@@ -333,7 +348,7 @@ def _pg_service_combo_box_changed(self):
                     index, PgConfigPanel._SERVICE_COMBOBOX_ROLE.DATABASE
                 )
             )
-            self.pg_schema_line_edit.setText(
+            self.pg_schema_combo_box.setText(
                 self.pg_service_combo_box.itemData(
                     index, PgConfigPanel._SERVICE_COMBOBOX_ROLE.DBSCHEMA
                 )
@@ -395,6 +410,8 @@ def _pg_service_combo_box_changed(self):
             == self.pg_ssl_mode_combo_box.findData(None)
         )
 
+        self._fields_modified()
+
     def _keep_custom_settings(self):
 
         index = self.pg_service_combo_box.findData(
@@ -422,7 +439,7 @@ def _keep_custom_settings(self):
         )
         self.pg_service_combo_box.setItemData(
             index,
-            self.pg_schema_line_edit.text().strip().lower(),
+            self.pg_schema_combo_box.currentText().strip().lower(),
             PgConfigPanel._SERVICE_COMBOBOX_ROLE.DBSCHEMA,
         )
         self.pg_service_combo_box.setItemData(
@@ -440,3 +457,43 @@ def _keep_custom_settings(self):
             self.pg_ssl_mode_combo_box.currentData(),
             PgConfigPanel._SERVICE_COMBOBOX_ROLE.SSLMODE,
         )
+
+    def _fields_modified(self):
+
+        self._fill_schema_combo_box_timer.start(self.REFRESH_SCHEMAS_TIMEOUT_MS)
+
+        self.notify_fields_modified.emit()
+
+    def _fill_schema_combo_box(self):
+
+        configuration = Ili2DbCommandConfiguration()
+
+        mode = DbIliMode.pg
+        self.get_fields(configuration)
+
+        configuration.tool = mode
+        configuration.db_ili_version = db_utils.db_ili_version(configuration)
+
+        db_connector = db_utils.get_db_connector(configuration)
+        if not db_connector:
+            logging.warning("Refresh schema list connection error")
+            return
+
+        schemas = db_connector.get_schemas()
+
+        AUTO_ADDED_SCHEMA = "auto_added_schema"
+
+        currentText = self.pg_schema_combo_box.currentText()
+
+        # Remove all items that were not added by the user
+        index_to_remove = self.pg_schema_combo_box.findData(AUTO_ADDED_SCHEMA)
+        while index_to_remove > -1:
+            self.pg_schema_combo_box.removeItem(index_to_remove)
+            index_to_remove = self.pg_schema_combo_box.findData(AUTO_ADDED_SCHEMA)
+
+        for schema in schemas:
+            self.pg_schema_combo_box.addItem(schema, AUTO_ADDED_SCHEMA)
+
+        currentTextIndex = self.pg_schema_combo_box.findText(currentText)
+        if currentTextIndex > -1:
+            self.pg_schema_combo_box.setCurrentIndex(currentTextIndex)
diff --git a/QgisModelBaker/ui/pg_settings_panel.ui b/QgisModelBaker/ui/pg_settings_panel.ui
index d0f2291ed..0ec660531 100644
--- a/QgisModelBaker/ui/pg_settings_panel.ui
+++ b/QgisModelBaker/ui/pg_settings_panel.ui
@@ -69,13 +69,6 @@
      </property>
     </widget>
    </item>
-   <item row="4" column="1">
-    <widget class="QLineEdit" name="pg_schema_line_edit">
-     <property name="placeholderText">
-      <string/>
-     </property>
-    </widget>
-   </item>
    <item row="1" column="1">
     <widget class="QLineEdit" name="pg_host_line_edit">
      <property name="text">
@@ -110,6 +103,9 @@
      </property>
     </widget>
    </item>
+   <item row="4" column="1">
+    <widget class="QComboBox" name="pg_schema_combo_box"/>
+   </item>
   </layout>
  </widget>
  <customwidgets>
@@ -124,7 +120,7 @@
   <tabstop>pg_host_line_edit</tabstop>
   <tabstop>pg_port_line_edit</tabstop>
   <tabstop>pg_database_line_edit</tabstop>
-  <tabstop>pg_schema_line_edit</tabstop>
+  <tabstop>pg_schema_combo_box</tabstop>
   <tabstop>pg_use_super_login</tabstop>
  </tabstops>
  <resources/>