diff --git a/lib/modules/platform/bitbucket/comments.ts b/lib/modules/platform/bitbucket/comments.ts
index b725e1ad04d79bfb8f33e5e4d8a516b1a988fc8a..ddb4916cf53a46a9927308ddd844fcc9fcf1846c 100644
--- a/lib/modules/platform/bitbucket/comments.ts
+++ b/lib/modules/platform/bitbucket/comments.ts
@@ -95,6 +95,10 @@ export async function ensureComment({
         }
       });
     }
+
+    // sanitize any language that isn't supported by Bitbucket Cloud
+    body = sanitizeCommentBody(body);
+
     if (!commentId) {
       await addComment(config, prNo, body);
       logger.info(
@@ -146,3 +150,10 @@ export async function ensureCommentRemoval(
     logger.warn({ err }, 'Error ensuring comment removal');
   }
 }
+
+function sanitizeCommentBody(body: string): string {
+  return body.replace(
+    'checking the rebase/retry box above',
+    'renaming this PR to start with "rebase!"'
+  );
+}
diff --git a/lib/modules/platform/bitbucket/index.ts b/lib/modules/platform/bitbucket/index.ts
index 589557487c42d6b19870ffcd6c985ca19d01f5ed..2b547488a6a3ae5960d6cbf9b418e2a4a73a9c78 100644
--- a/lib/modules/platform/bitbucket/index.ts
+++ b/lib/modules/platform/bitbucket/index.ts
@@ -484,7 +484,7 @@ export function massageMarkdown(input: string): string {
   return smartTruncate(input, 50000)
     .replace(
       'you tick the rebase/retry checkbox',
-      'rename PR to start with "rebase!"'
+      'by renaming this PR to start with "rebase!"'
     )
     .replace(regEx(/<\/?summary>/g), '**')
     .replace(regEx(/<\/?details>/g), '')
diff --git a/lib/workers/repository/update/branch/handle-existing.ts b/lib/workers/repository/update/branch/handle-existing.ts
index b378ededb8d4b8373b8e3c5bd3b197c1fe20a2df..341807948514701dc0fb9ddc503b542e043ed1a5 100644
--- a/lib/workers/repository/update/branch/handle-existing.ts
+++ b/lib/workers/repository/update/branch/handle-existing.ts
@@ -62,7 +62,7 @@ export async function handleModifiedPr(
 
   const editedPrCommentTopic = 'Edited/Blocked Notification';
   const content =
-    'Renovate will not automatically rebase this PR, because it does not recognize the last commit author and assumes somebody else may have edited the PR.\n' +
+    'Renovate will not automatically rebase this PR, because it does not recognize the last commit author and assumes somebody else may have edited the PR.\n\n' +
     'You can manually request rebase by checking the rebase/retry box above.\n\n' +
     emojify(' :warning: **Warning**: custom changes will be lost.');