diff --git a/spire/templates/shared-alb.yml b/spire/templates/shared-alb.yml
index 5f3a508b..f15b35dd 100644
--- a/spire/templates/shared-alb.yml
+++ b/spire/templates/shared-alb.yml
@@ -439,7 +439,7 @@ Resources:
     Type: AWS::WAFv2::WebACL
     Properties:
       DefaultAction:
-        Allow:
+        Allow: {}
       Scope: REGIONAL
       Tags:
         - { Key: prx:meta:tagging-version, Value: "2021-04-07" }