diff --git a/docs/library/validators.rst b/docs/library/validators.rst
index acca71eb8..5d8b1dd79 100644
--- a/docs/library/validators.rst
+++ b/docs/library/validators.rst
@@ -1,5 +1,5 @@
 :mod:`validators`
-===============
+=================
 
 .. automodule:: validators
    :members: