diff --git a/pyproject.toml b/pyproject.toml
index f36cfa9..afe5e00 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,9 +23,9 @@ classifiers = [
     "Topic :: Internet :: WWW/HTTP :: WSGI :: Middleware",
 ]
 dependencies = [
-    "Flask==3.1.2",
-    "requests==2.32.5",
-    "prometheus_client==0.22.1",
+    "Flask==3.1.3",
+    "requests==2.34.2",
+    "prometheus_client==0.25.0",
     "gunicorn==23.0.0",
     "redis==6.4.0",
 ]
@@ -38,12 +38,12 @@ documentation = "https://github.com/app-sre/github-mirror"
 [dependency-groups]
 dev = [
     # Development dependencies
-    "ruff==0.12.12",
-    "mypy==1.17.1",
-    "pytest==9.0.1",
+    "ruff==0.15.13",
+    "mypy==1.20.2",
+    "pytest==9.0.3",
     "pytest-cov==6.3.0",
     "pytest-forked==1.6.0",
-    "types-requests==2.32.4.20250809",
+    "types-requests==2.33.0.20260513",
 ]
 
 # Ruff configuration