diff --git a/requirements-dev.txt b/requirements-dev.txt
index c5fe70e..2ce781c 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -4,7 +4,7 @@
 #
 #    pip-compile --extra=dev --output-file=requirements-dev.txt pyproject.toml
 #
-black==24.4.2
+black==26.3.1
     # via livecode-archive (pyproject.toml)
 cachetools==5.3.3
     # via google-auth