diff --git a/mambabase/mambabase.py b/mambabase/mambabase.py
index 1964e34..141b174 100755
--- a/mambabase/mambabase.py
+++ b/mambabase/mambabase.py
@@ -65,6 +65,19 @@ class PrepareThread(QtCore.QThread):
 
     def run(self):
         # Update packages list
+        self.updateProgressSignal.emit({ 'value': 5,
+            'label': _("Updating packages list..."),
+            'details': _("Updating packages list...")})
+        result = subprocess.run(['pkcon', 'refresh'],
+            stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+        if result.returncode == 0:
+            if result.stdout:
+                self.updateProgressSignal.emit({
+                    'details': result.stdout.decode('UTF-8').replace('\n', '<br/>')})
+        else:
+            if result.stderr:
+                self.updateProgressSignal.emit({
+                    'details': result.stderr.decode('UTF-8').replace('\n', '<br/>')})
         self.updateProgressSignal.emit({ 'value': 5,
             'label': _("Checking installed packages...")})
         self.parent.selectGroupsPage.loadPkgGroups()