diff --git a/backend/requirements-dev.txt b/backend/requirements-dev.txt
index 71ac257..4a18a9f 100644
--- a/backend/requirements-dev.txt
+++ b/backend/requirements-dev.txt
@@ -1,12 +1,12 @@
 # Development / formatting dependencies
-ruff==0.15.19
+ruff==0.16.1
 
 # Security scanning
 bandit[toml]>=1.8.2,<2.0
-pip-audit==2.7.3
+pip-audit==2.10.1
 
 # Testing
-pytest==9.0.3
+pytest==9.1.1
 pytest-asyncio==1.4.0
 pytest-cov==7.1.0
-httpx==0.27.0
+httpx==0.28.1