diff --git a/charts/argocd-notifications/templates/bots/slack/deployment.yaml b/charts/argocd-notifications/templates/bots/slack/deployment.yaml
index 696c107e..75883073 100644
--- a/charts/argocd-notifications/templates/bots/slack/deployment.yaml
+++ b/charts/argocd-notifications/templates/bots/slack/deployment.yaml
@@ -33,7 +33,6 @@ spec:
           ports:
           - containerPort: 8080
             name: http
-            protocol: TCP
       {{- with .Values.bots.slack.nodeSelector }}
       nodeSelector:
         {{- toYaml . | nindent 8 }}