diff --git a/lua/config/isort.lua b/lua/config/isort.lua
index 862e260..6eb7ae9 100644
--- a/lua/config/isort.lua
+++ b/lua/config/isort.lua
@@ -1,4 +1,4 @@
-vim.api.nvim_create_autocmd( { "BufWritePost" }, {
+vim.api.nvim_create_autocmd( { "BufWritePre" }, {
   pattern = { "*.py", "*.pyi" },
-  command = [[ :silent! !/usr/bin/isort -q % ]],
+  command = [[ :silent! %!/usr/bin/env isort -q - ]],
 })