diff --git a/pyproject.toml b/pyproject.toml
index a8f1f46..d8579a0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,7 +24,7 @@ classifiers = [
   "Programming Language :: Python :: Implementation :: CPython",
   "Programming Language :: Python :: Implementation :: PyPy",
 ]
-dependencies = ["httpx==0.25.0"]
+dependencies = ["httpx==0.28.1"]
 dynamic = ["version"]
 
 [project.optional-dependencies]