diff --git a/requirements.txt b/requirements.txt
index ae73322..4aa0944 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-black==26.1.0
+black==26.3.1
 grpcio-tools==1.78.0
 grpcio==1.78.0
 protobuf>=6.30.0