diff --git a/pyproject.toml b/pyproject.toml
index d90fe71..cf08c01 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,5 +1,5 @@
 [tool.black]
-target-version = ["py37", "py38"]
+target-version = ["py38", "py39"]
 include = 'custom_components/localtuya/.*\.py'
 
 # pylint config stolen from Home Assistant
@@ -79,4 +79,4 @@ score = false
 expected-line-ending-format = "LF"
 
 [tool.pylint.MISCELLANEOUS]
-notes = "XXX"
\ No newline at end of file
+notes = "XXX"