diff --git a/.github/workflows/release-source.yml b/.github/workflows/release-source.yml
index 1d3314a1..2fb500fd 100644
--- a/.github/workflows/release-source.yml
+++ b/.github/workflows/release-source.yml
@@ -243,6 +243,7 @@ jobs:
         id: create-pr
         run: |
           PR_NOTES=$(cat pr_notes.txt)
+          PR_NOTES=$(echo "$PR_NOTES" | sed ':a;N;$!ba;s/\n/\\n/g')
           PR_NOTES="What's changed <br /><br />$PR_NOTES"
           # Create a pull request with release notes
           curl -L \