diff --git a/pep-9999.rst b/pep-9999.rst
index 156c7fa0bd0..ee09209e5bb 100644
--- a/pep-9999.rst
+++ b/pep-9999.rst
@@ -159,9 +159,11 @@ tables. These requirement lists are described with the same as
 Reference implementation
 ========================
 
-Tools will need to convert this format to :pep`508` requirement strings. Below
+Tools will need to convert this format to :pep:`508` requirement strings. Below
 is an example implementation of that conversion (assuming validation is already
-performed)::
+performed):
+
+.. code-block:: python
 
     def convert_requirement_to_pep508(name, requirement):
         if isinstance(requirement, str):
@@ -205,7 +207,9 @@ performed)::
 Examples
 ========
 
-Full example::
+Full example:
+
+.. code-block:: toml
 
     [project.dependencies]
     flask = {}
@@ -220,7 +224,9 @@ Full example::
     ]
 
 In homage to :pep:`631`, the following is an equivalent dependencies
-specification for `docker-compose`_::
+specification for `docker-compose`_:
+
+.. code-block:: toml
 
     [project.dependencies]
     cached-property = '>= 1.2.0, < 2'