diff --git a/pyproject.toml b/pyproject.toml
index 43a561a..103b00c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,7 +12,7 @@ dependencies = [
     "promplate-trace[langfuse,langsmith]==0.3.0dev5",
     "python-box~=7.2.0",
     "pydantic-settings~=2.6.0",
-    "httpx[http2]~=0.27.0",
+    "httpx[http2]~=0.28.0",
     "promptools[stream,validation]~=0.1.3.3",
     "fake-useragent~=1.5.1",
     "html2text~=2024.2.26",