diff --git a/apps/overlays/au-syd1/externaldns/kustomization.yaml b/apps/overlays/au-syd1/externaldns/kustomization.yaml
index 4c32a58..1399090 100644
--- a/apps/overlays/au-syd1/externaldns/kustomization.yaml
+++ b/apps/overlays/au-syd1/externaldns/kustomization.yaml
@@ -8,7 +8,7 @@ resources:
 helmCharts:
   - name: external-dns
     repo: https://artifactapi.k8s.syd1.au.unkin.net/api/v1/virtual/helm
-    version: "1.19.0"
+    version: "1.21.1"
     releaseName: externaldns
     namespace: externaldns
     valuesFile: values.yaml
diff --git a/apps/overlays/au-syd1/externaldns/values.yaml b/apps/overlays/au-syd1/externaldns/values.yaml
index cc5e650..fa807c2 100644
--- a/apps/overlays/au-syd1/externaldns/values.yaml
+++ b/apps/overlays/au-syd1/externaldns/values.yaml
@@ -26,7 +26,6 @@ sources:
   - ingress
   - gateway-httproute
   - gateway-grpcroute
-  - gateway-tcproute
 
 # Environment variables for TSIG secret and algorithm from Vault
 env: