diff --git a/README.md b/README.md
index 7d4eb22..95db6f5 100644
--- a/README.md
+++ b/README.md
@@ -165,10 +165,10 @@ The content must be [escaped to preserve newlines](https://github.community/t/se
       - id: get-comment-body
         run: |
           body="$(cat comment-body.txt)"
-          body="${body//'%'/'%25'}"
-          body="${body//$'\n'/'%0A'}"
-          body="${body//$'\r'/'%0D'}" 
-          echo "body=$body" >> $GITHUB_OUTPUT
+          delimiter="$(openssl rand -hex 8)"
+          echo "body<<$delimiter" >> $GITHUB_OUTPUT
+          echo "$body" >> $GITHUB_OUTPUT
+          echo "$delimiter" >> $GITHUB_OUTPUT
 
       - name: Create comment
         uses: peter-evans/create-or-update-comment@v2