diff --git a/function-source/requirements.txt b/function-source/requirements.txt
index 26f399c..85e8d12 100644
--- a/function-source/requirements.txt
+++ b/function-source/requirements.txt
@@ -1,3 +1,3 @@
 # Function dependencies, for example:
 # package>=version
-google-cloud-billing==1.13.6
\ No newline at end of file
+google-cloud-billing==1.14.0
\ No newline at end of file