diff --git a/python/PyQt6/gui/auto_additions/qgsnewhttpconnection.py b/python/PyQt6/gui/auto_additions/qgsnewhttpconnection.py
index ed94178ba9c..cf793dd4d7a 100644
--- a/python/PyQt6/gui/auto_additions/qgsnewhttpconnection.py
+++ b/python/PyQt6/gui/auto_additions/qgsnewhttpconnection.py
@@ -29,6 +29,6 @@ QgsNewHttpConnection.Flag.__and__ = lambda flag1, flag2: _force_int(flag1) & _fo
 QgsNewHttpConnection.Flag.__or__ = lambda flag1, flag2: QgsNewHttpConnection.Flag(_force_int(flag1) | _force_int(flag2))
 try:
     QgsNewHttpConnection.__virtual_methods__ = ['validate', 'wfsSettingsKey', 'wmsSettingsKey']
-    QgsNewHttpConnection.__overridden_methods__ = ['accept']
+    QgsNewHttpConnection.__overridden_methods__ = ['accept', 'showEvent']
 except (NameError, AttributeError):
     pass
diff --git a/python/PyQt6/gui/auto_generated/qgsnewhttpconnection.sip.in b/python/PyQt6/gui/auto_generated/qgsnewhttpconnection.sip.in
index 1b439dfc3e2..9a5f7697f51 100644
--- a/python/PyQt6/gui/auto_generated/qgsnewhttpconnection.sip.in
+++ b/python/PyQt6/gui/auto_generated/qgsnewhttpconnection.sip.in
@@ -123,6 +123,12 @@ Returns the QSettings key for WMS related settings for the connection.
 %Docstring
 Triggers a resync of the GUI widgets for the service specific settings
 (i.e. WFS and WMS related settings).
+%End
+
+    virtual void showEvent( QShowEvent *event );
+
+%Docstring
+Adjust height of dialog to fit the content.
 %End
 
 };
diff --git a/python/gui/auto_additions/qgsnewhttpconnection.py b/python/gui/auto_additions/qgsnewhttpconnection.py
index decce24bfbc..0f9fe5ca3a2 100644
--- a/python/gui/auto_additions/qgsnewhttpconnection.py
+++ b/python/gui/auto_additions/qgsnewhttpconnection.py
@@ -1,6 +1,6 @@
 # The following has been generated automatically from src/gui/qgsnewhttpconnection.h
 try:
     QgsNewHttpConnection.__virtual_methods__ = ['validate', 'wfsSettingsKey', 'wmsSettingsKey']
-    QgsNewHttpConnection.__overridden_methods__ = ['accept']
+    QgsNewHttpConnection.__overridden_methods__ = ['accept', 'showEvent']
 except (NameError, AttributeError):
     pass
diff --git a/python/gui/auto_generated/qgsnewhttpconnection.sip.in b/python/gui/auto_generated/qgsnewhttpconnection.sip.in
index 2f6449ccd22..9c1d43b0550 100644
--- a/python/gui/auto_generated/qgsnewhttpconnection.sip.in
+++ b/python/gui/auto_generated/qgsnewhttpconnection.sip.in
@@ -123,6 +123,12 @@ Returns the QSettings key for WMS related settings for the connection.
 %Docstring
 Triggers a resync of the GUI widgets for the service specific settings
 (i.e. WFS and WMS related settings).
+%End
+
+    virtual void showEvent( QShowEvent *event );
+
+%Docstring
+Adjust height of dialog to fit the content.
 %End
 
 };
diff --git a/src/gui/qgsnewhttpconnection.cpp b/src/gui/qgsnewhttpconnection.cpp
index e705e518801..3d31c30f009 100644
--- a/src/gui/qgsnewhttpconnection.cpp
+++ b/src/gui/qgsnewhttpconnection.cpp
@@ -178,10 +178,6 @@ QgsNewHttpConnection::QgsNewHttpConnection( QWidget *parent, ConnectionTypes typ
     mAuthGroupBox->hide();
     mGroupBox->layout()->removeWidget( mAuthGroupBox );
   }
-  // Adjust height
-  const int w = width();
-  adjustSize();
-  resize( w, height() );
 
   connect( txtName, &QLineEdit::textChanged, this, &QgsNewHttpConnection::nameChanged );
   connect( txtUrl, &QLineEdit::textChanged, this, &QgsNewHttpConnection::urlChanged );
@@ -368,6 +364,12 @@ void QgsNewHttpConnection::updateServiceSpecificSettings()
   txtPageSize->setText( QgsOwsConnection::settingsPagesize->value( detailsParameters ) );
 }
 
+void QgsNewHttpConnection::showEvent(QShowEvent* event)
+{
+  QDialog::showEvent( event );
+  adjustSize();
+}
+
 QUrl QgsNewHttpConnection::urlTrimmed() const
 {
   QUrl url( txtUrl->text().trimmed() );
diff --git a/src/gui/qgsnewhttpconnection.h b/src/gui/qgsnewhttpconnection.h
index ab6a54337b3..f330684e41f 100644
--- a/src/gui/qgsnewhttpconnection.h
+++ b/src/gui/qgsnewhttpconnection.h
@@ -200,6 +200,11 @@ class GUI_EXPORT QgsNewHttpConnection : public QDialog, private Ui::QgsNewHttpCo
      */
     void updateServiceSpecificSettings();
 
+    /**
+     * Adjust height of dialog to fit the content.
+     */
+    void showEvent( QShowEvent *event ) override;
+
   private:
     ConnectionTypes mTypes = ConnectionWms;