diff --git a/docs/en_US/release_notes_4_22.rst b/docs/en_US/release_notes_4_22.rst
index 7d18e077d..ec58ea765 100644
--- a/docs/en_US/release_notes_4_22.rst
+++ b/docs/en_US/release_notes_4_22.rst
@@ -23,6 +23,7 @@ Bug fixes
 | `Issue #3694 <https://redmine.postgresql.org/issues/3694>`_ -  Gracefully informed the user that the database is already connected when they click on "Connect Database...".
 | `Issue #4279 <https://redmine.postgresql.org/issues/4279>`_ -  Ensure that file browse "home" button should point to $HOME rather than /.
 | `Issue #4840 <https://redmine.postgresql.org/issues/4840>`_ -  Ensure that 'With OID' option should be disabled while taking backup of database server version 12 and above.
+| `Issue #5001 <https://redmine.postgresql.org/issues/5001>`_ -  Fixed invalid literal issue when removing the connection limit for the existing role.
 | `Issue #5422 <https://redmine.postgresql.org/issues/5422>`_ -  Ensure that the dependencies tab shows correct information for Synonyms.
 | `Issue #5440 <https://redmine.postgresql.org/issues/5440>`_ -  Fixed list sorting issue in the schema diff tool.
 | `Issue #5449 <https://redmine.postgresql.org/issues/5449>`_ -  Fixed an issue while comparing the two identical schemas using the schema diff tool.
diff --git a/web/pgadmin/browser/server_groups/servers/roles/__init__.py b/web/pgadmin/browser/server_groups/servers/roles/__init__.py
index 26533d944..a98c883ce 100644
--- a/web/pgadmin/browser/server_groups/servers/roles/__init__.py
+++ b/web/pgadmin/browser/server_groups/servers/roles/__init__.py
@@ -158,6 +158,10 @@ class RoleView(PGChildNodeView):
                     )
 
             if u'rolconnlimit' in data:
+                # If roleconnlimit is empty string then set it to -1
+                if data[u'rolconnlimit'] == '':
+                    data[u'rolconnlimit'] = -1
+
                 if data[u'rolconnlimit'] is not None:
                     data[u'rolconnlimit'] = int(data[u'rolconnlimit'])
                     if type(data[u'rolconnlimit']) != int or \