1 files changed, 2 insertions, 0 deletions
diff --git a/README.rst b/README.rst
index 9e41867b..574e6e3e 100644
--- a/README.rst
+++ b/README.rst
@@ -281,6 +281,8 @@ choice:
 
     In [3]: my_result = _
 
+Pgcli only runs on Python3.6+ since 2.2.0, if you use an old version of Python,
+you should use install ``pgcli <= 2.2.0``.
 
 Thanks:
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