diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 7b026f6..ac34f33 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -7,7 +7,7 @@ jobs:
     steps:
     - name: Publish to slack
       id: slack
-      uses: stevengill/slack-github-action@v1.3.1
+      uses: stevengill/slack-github-action@v1.3.2
       with:
         channel-id: 'CTAAHRA79'
 #         slack-message: 'posting from a github action!'
diff --git a/index.js b/index.js
index 7e9ec3f..5ead6a9 100644
--- a/index.js
+++ b/index.js
@@ -28,7 +28,7 @@ try {
 
         const web = new WebClient(botToken);
 
-        if(channelId !== undefined && message !== undefined) {
+        if(channelId.length > 0 && message.length > 0) {
             // post message
             web.chat.postMessage({text: message, channel: channelId});
         } else {
diff --git a/package.json b/package.json
index 19e0130..0b8c015 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "slack-github-action",
-  "version": "1.3.1",
+  "version": "1.3.2",
   "description": "",
   "main": "index.js",
   "scripts": {