diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index aac3beda92a..2e6b43ac8ea 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -3,7 +3,7 @@ repos:
     rev: 19.10b0
     hooks:
     -   id: black
-        args: [--safe, --quiet, --target-version, py35]
+        args: [--safe, --quiet]
 -   repo: https://github.com/asottile/blacken-docs
     rev: v1.0.0
     hooks:
diff --git a/pyproject.toml b/pyproject.toml
index 4ac1fd754d8..aa57762e75d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -54,3 +54,6 @@ template = "changelog/_template.rst"
   directory = "trivial"
   name = "Trivial/Internal Changes"
   showcontent = true
+
+[tool.black]
+target-version = ['py35']