diff --git a/docs/source/concepts/resource_tree.rst b/docs/source/concepts/resource_tree.rst
index 9fb1947..25b5c73 100644
--- a/docs/source/concepts/resource_tree.rst
+++ b/docs/source/concepts/resource_tree.rst
@@ -14,7 +14,7 @@ subcommands.
 Overview
 --------
 
-.. code-block:: text
+.. code-block:: none
 
     /
     │
diff --git a/docs/source/tutorial/tutorial04.rst b/docs/source/tutorial/tutorial04.rst
index a0e04e3..8163d99 100644
--- a/docs/source/tutorial/tutorial04.rst
+++ b/docs/source/tutorial/tutorial04.rst
@@ -81,7 +81,7 @@ I Need my Report
   First of all, that code is not readable.  And the output would be something
   like:
 
-  .. code-block:: text
+  .. code-block:: none
 
      corporate-server
      Tue 26 Nov 2019 01:03:44 PM CET
@@ -97,7 +97,7 @@ I Need my Report
 
   What *Susan* is used to see is more like this:
 
-  .. code-block:: text
+  .. code-block:: none
 
      Hostname:
      ... the output of `hostname` ...
diff --git a/poc/README.rst b/poc/README.rst
index 3780542..f08929a 100644
--- a/poc/README.rst
+++ b/poc/README.rst
@@ -12,8 +12,8 @@ Try the software within this directory with caution, anything can break
 at any moment.
 
 
-.. code-block:: plain
-   
+.. code-block:: none
+
             _,-._
            ; ___ :           ,------------------------------.
        ,--' (. .) '--.__    |                                |
diff --git a/spec/test/README.rst b/spec/test/README.rst
index 42a2e2b..7cf4fca 100644
--- a/spec/test/README.rst
+++ b/spec/test/README.rst
@@ -39,7 +39,7 @@ very directory run:
 This should test the current installed kapow implementation and output
 something like:
 
-.. code-block:: plain
+.. code-block:: none
 
    13 features passed, 0 failed, 0 skipped
    23 scenarios passed, 0 failed, 0 skipped