diff --git a/requirements-dev.txt b/requirements-dev.txt
index 5b23931..5e2a2c2 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -9,7 +9,7 @@ httpx==0.28.1
 fakeredis>=2.21.0
 
 # Code Quality
-black==24.1.1
+black==25.12.0
 ruff==0.14.10
 mypy==1.19.1
 pre-commit==4.5.1
diff --git a/requirements.txt b/requirements.txt
index dfd0536..4f82afb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -89,7 +89,7 @@ httpx==0.28.1
 fakeredis>=2.21.0  # Redis mocking for tests (Issue #8)
 
 # Code Quality
-black==24.1.1
+black==25.12.0
 ruff==0.14.10
 mypy==1.19.1
 pre-commit==4.5.1