diff --git a/.github/workflows/size.yml b/.github/workflows/size.yml
index 52884daa4..df36d8c26 100644
--- a/.github/workflows/size.yml
+++ b/.github/workflows/size.yml
@@ -57,11 +57,15 @@ jobs:
             <tbody>
             <tr><td>This PR</td><td>
 
+            ```
             ${{ steps.dev.outputs.sizes }}
+            ```
 
             </td><td>
 
+            ```
             ${{ steps.prod.outputs.sizes }}
+            ```
 
             </td></tr>
             </tbody></table>