diff --git a/requirements.txt b/requirements.txt
index 4c086573bc16c2b898bddb3311833a64bd6ac97d..b61065c1113cdf8bfa5abbe3653aca35a94cf879 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@
 # should match https://pypi.python.org/pypi names. For the full spec or
 # dependency lines, see https://pip.readthedocs.org/en/1.1/requirements.html
 click
-elasticsearch>=7.0.0,<8.0.0
+elasticsearch >= 7.0.0, < 8.0.0
 typing-extensions
-tree_sitter
+tree_sitter < 0.22.0
 iso8601