diff --git a/isort/settings.py b/isort/settings.py
index 1e10ab60e..94a14acf2 100644
--- a/isort/settings.py
+++ b/isort/settings.py
@@ -54,11 +54,14 @@
         ".hg",
         ".mypy_cache",
         ".nox",
+        ".svn",
+        ".bzr",
         "_build",
         "buck-out",
         "build",
         "dist",
         ".pants.d",
+        ".direnv",
         "node_modules",
     }
 )