diff --git a/lambdas/pdf-generate/requirements.txt b/lambdas/pdf-generate/requirements.txt
index e76ff65..3a5013f 100644
--- a/lambdas/pdf-generate/requirements.txt
+++ b/lambdas/pdf-generate/requirements.txt
@@ -1,3 +1,3 @@
 reportlab>=4.5.1,<5.0
 boto3>=1.43.9,<2.0
-httpx>=0.27.0,<1.0
+httpx>=0.28.1,<1.0