diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 05fdd0745..5cd8d21e1 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -40,7 +40,7 @@ repos:
             metadata.vscode
 
   - repo: https://github.com/ComPWA/policy
-    rev: 0.3.13
+    rev: 0.3.15
     hooks:
       - id: check-dev-files
         args:
diff --git a/pyproject.toml b/pyproject.toml
index 000669f92..f5f77f493 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -67,6 +67,7 @@ dev = [
 doc = [
     "Sphinx >=3",
     "ampform[all]",
+    "black",
     "ipympl",
     "matplotlib <3.9.0", # https://github.com/ComPWA/ampform/issues/279
     "matplotlib",