diff --git a/requirements.txt b/requirements.txt
index c8c1ac0..7090999 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,7 +30,7 @@ pytest-cov==7.1.0
 pytest-mock==3.15.1
 
 # Development tools
-black>=24.3.0
+black>=26.3.1
 flake8==7.3.0
 mypy==1.19.1