diff --git a/lua/lsp/diagnosticls.lua b/lua/lsp/diagnosticls.lua
index 156eb6c..a219708 100644
--- a/lua/lsp/diagnosticls.lua
+++ b/lua/lsp/diagnosticls.lua
@@ -142,10 +142,9 @@ return {
                 black = {
                     command = "black",
                     args = {
+                        "--line-length", "80",
                         "--stdin-filename",
                         "%filename",
-                        "-t",
-                        "py39",
                         "--quiet",
                         "-",
                     },