diff --git a/.github/workflows/integration.yml b/.github/workflows/integration.yml
index 04ad9bc..3533cc9 100644
--- a/.github/workflows/integration.yml
+++ b/.github/workflows/integration.yml
@@ -57,5 +57,7 @@ jobs:
         with:
           message: |
             **It works!**
+          proxy-url: https://add-pr-comment-bot-73luvmwygq-uc.a.run.app
+          proxy-secret: ${{ secrets.PROXY_SECRET }}
           repo-token: ${{ secrets.GITHUB_TOKEN }}
           repo-token-user-login: "github-actions[bot]"
diff --git a/README.md b/README.md
index 448b4f1..60adea2 100644
--- a/README.md
+++ b/README.md
@@ -78,7 +78,7 @@ jobs:
         with:
           message: |
             **Howdie!**
-          proxy-url: https://add-pr-comment-proxy-94idvmwyie-uc.a.run.app/
+          proxy-url: https://add-pr-comment-proxy-94idvmwyie-uc.a.run.app
           proxy-secret: foobar
           repo-token: ${{ secrets.GITHUB_TOKEN }}
 ```
diff --git a/add-pr-comment.ts b/add-pr-comment.ts
index 16fe1ad..dcc388d 100644
--- a/add-pr-comment.ts
+++ b/add-pr-comment.ts
@@ -95,7 +95,7 @@ const getInputs = (): AddPrCommentInputs => {
     allowRepeats: Boolean(core.getInput('allow-repeats') === 'true'),
     message: core.getInput('message'),
     proxySecret: core.getInput('proxy-secret'),
-    proxyUrl: core.getInput('proxy-url'),
+    proxyUrl: core.getInput('proxy-url').replace(/\/$/, ''),
     repoToken: core.getInput('repo-token') || process.env['GITHUB_TOKEN'],
     repoTokenUserLogin: core.getInput('repo-token-user-login'),
   }