diff --git a/format.sh b/format.sh
index 33e2e87d..3dcd86f7 100755
--- a/format.sh
+++ b/format.sh
@@ -18,5 +18,5 @@
 
 set -ex
 
-pyink --pyink-use-majority-quotes --pyink-indentation 2 ./
-isort --profile google --multi-line 7 --skip .downloads ./
+pyink --pyink-use-majority-quotes --pyink-indentation 2 --extend-exclude third_party --extend-exclude .downloads ./
+isort --profile google --multi-line 7 --skip .downloads ./ --skip venv --skip third_party