diff --git a/requirements_tooling.txt b/requirements_tooling.txt
index 948fd07..a280d76 100644
--- a/requirements_tooling.txt
+++ b/requirements_tooling.txt
@@ -1,6 +1,6 @@
 # For local dev tooling only, this is separate from requirements_dev.txt because these
 # libraries are not needed within the built docker container in any environment.
-black==25.1.0
+black==26.3.1
 flake8==7.3.0
 isort==6.0.1
 pre-commit==4.3.0