diff --git a/functions/http/requirements.txt b/functions/http/requirements.txt
index 49c6c6065c1..e5bd200090e 100644
--- a/functions/http/requirements.txt
+++ b/functions/http/requirements.txt
@@ -1,4 +1,4 @@
 functions-framework==3.9.2
 google-cloud-storage==2.9.0; python_version < '3.7'
 google-cloud-storage==2.9.0; python_version > '3.6'
-xmltodict==0.13.0
+xmltodict==1.0.0