diff --git a/pyproject.toml b/pyproject.toml
index 0e4158c7..1e150116 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -64,7 +64,7 @@ tests = [
   "webargs[frameworks]",
   "pytest",
   "pytest-asyncio",
-  "webtest==3.0.2",
+  "webtest==3.0.3",
   "webtest-aiohttp==2.0.0",
   "pytest-aiohttp>=0.3.0",
   "packaging>=17.0",