diff --git a/rql/rql/pygments_ext.py b/rql/rql/pygments_ext.py

index 10e19bb..445412f 100644

--- a/rql/rql/pygments_ext.py

+++ b/rql/rql/pygments_ext.py

@@ -10,9 +10,10 @@

 import re

-from pygments.lexer import RegexLexer, _mapping

+from pygments.lexer import RegexLexer

 from pygments.token import Punctuation, \

      Text, Operator, Keyword, Name, String, Number

+from pygments.lexers._mapping import LEXERS

 __all__ = ['RqlLexer']

@@ -45,4 +46,4 @@ class RqlLexer(RegexLexer):

     }

-_mapping.LEXERS['RqlLexer'] = ('rql.pygments_ext', 'RQL', ('rql',), ('*.rql',), ('text/x-rql',))

+LEXERS['RqlLexer'] = ('rql.pygments_ext', 'RQL', ('rql',), ('*.rql',), ('text/x-rql',))

-- 

2.24.1