diff --git a/index.ts b/index.ts
index 92278e1..5bd19cb 100644
--- a/index.ts
+++ b/index.ts
@@ -8,6 +8,8 @@ const NTFY_URL = process.env.NTFY_URL
 const TOPIC = process.env.NTFY_TOPIC
 const TOKEN = process.env.NTFY_TOKEN
 
+const isBirthday = dayjs().format("MM-DD") === "09-23"
+
 if (!TOKEN || !NTFY_URL || !TOPIC) {
   console.error("ntfy token, url or topic not set")
   process.exit(1)
@@ -22,7 +24,7 @@ async function main() {
     getWeather()
   ])
 
-  const message = `Good Morning, SilicoFlare!
+  const message = `${isBirthday ? "Happy Birthday" : "Good Morning"}, SilicoFlare!
 
 Today is **${dayjs().format("dddd, DD MMMM YYYY")}**.
 Hoy es **${dayjs().locale("es").format("dddd, D [de] MMMM [de] YYYY")}**.
@@ -43,7 +45,8 @@ ${usage}
         Authorization: `Bearer ${TOKEN}`,
         Title: `Daily Digest for ${dayjs().format("YYYY-MM-DD")}`,
         Markdown: "yes",
-        Tags: "calendar"
+        // if date is september 23rd, change the tag to "tada"
+        Tags: isBirthday ? "tada" : "calendar"
       },
       body: message,
     },