diff --git a/pyproject.toml b/pyproject.toml
index ccf18bc..b8fb0f7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,7 +24,7 @@ dependencies = [
 # Used by CI: pip install -e ".[dev]"
 [project.optional-dependencies]
 dev = [
-    "pytest>=8.0",
+    "pytest>=9.0.3",
     "pytest-asyncio>=0.24",
     "httpx>=0.27",
     "ruff>=0.15.7",
@@ -34,7 +34,7 @@ dev = [
 # Used locally: uv sync --dev
 [dependency-groups]
 dev = [
-    "pytest>=8.0",
+    "pytest>=9.0.3",
     "pytest-asyncio>=0.24",
     "httpx>=0.27",
     "ruff>=0.15.7",