diff --git a/requirements_dev.txt b/requirements_dev.txt
index b581056..92e047d 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -4,6 +4,6 @@ pypdf
 pytest
 flake8
 isort
-black==25.11.0
+black==26.3.1
 coverage
 codecov