diff --git a/lib/matplotlib/cm.py b/lib/matplotlib/cm.py
index 38b6eb03ca28..70c44d86b7c8 100644
--- a/lib/matplotlib/cm.py
+++ b/lib/matplotlib/cm.py
@@ -61,12 +61,6 @@ class ColormapRegistry(Mapping):
     r"""
     Container for colormaps that are known to Matplotlib by name.
 
-    .. admonition:: Experimental
-
-       While we expect the API to be final, we formally mark it as
-       experimental for 3.5 because we want to keep the option to still adapt
-       the API for 3.6 should the need arise.
-
     The universal registry instance is `matplotlib.colormaps`. There should be
     no need for users to instantiate `.ColormapRegistry` themselves.