diff --git a/releasenotes/notes/default_tspan_backend_solve-b1ad23f6ea291474.yaml b/releasenotes/notes/default_tspan_backend_solve-b1ad23f6ea291474.yaml
index 8388b1b63..2bafe896e 100644
--- a/releasenotes/notes/default_tspan_backend_solve-b1ad23f6ea291474.yaml
+++ b/releasenotes/notes/default_tspan_backend_solve-b1ad23f6ea291474.yaml
@@ -1,7 +1,7 @@
 ---
 upgrade:
   - |
-    `DynamicsBackend.solve()` method can now work without specifying a t_span argument. 
-    The default t_span is set to be [0, solve_input.duration] for each provided solve_input.
+    ``DynamicsBackend.solve()`` method can now work without specifying a ``t_span`` argument. 
+    The default ``t_span`` is set to be ``[0, solve_input.duration]`` for each provided ``solve_input``.
     This allows users to solve the dynamics of a quantum circuit without having to specify its
     duration in advance.