diff --git a/deploy/repositories/aws.yaml b/deploy/repositories/aws.yaml
index a3ec670..1f3ca3c 100644
--- a/deploy/repositories/aws.yaml
+++ b/deploy/repositories/aws.yaml
@@ -29,3 +29,23 @@ spec:
   providerConfigRef:
     kind: ProviderConfig
     name: default
+---
+apiVersion: repo.github.m.upbound.io/v1alpha1
+kind: DefaultBranch
+metadata:
+  name: aws
+  annotations:
+    # The Repository CRD's defaultBranch field is deprecated; manage the
+    # already-existing main branch through the dedicated resource instead.
+    crossplane.io/external-name: aws
+spec:
+  managementPolicies:
+    - Observe
+    - Create
+    - Update
+    - LateInitialize
+  forProvider:
+    branch: main
+  providerConfigRef:
+    kind: ProviderConfig
+    name: default