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diff --git a/doc/source/reference/random/upgrading-pcg64.rst b/doc/source/reference/random/upgrading-pcg64.rst
index 9e540ace9..b36bdf4c8 100644
--- a/doc/source/reference/random/upgrading-pcg64.rst
+++ b/doc/source/reference/random/upgrading-pcg64.rst
@@ -3,7 +3,7 @@
.. currentmodule:: numpy.random
Upgrading ``PCG64`` with ``PCG64DXSM``
---------------------------------------
+======================================
Uses of the `PCG64` `BitGenerator` in a massively-parallel context have been
shown to have statistical weaknesses that were not apparent at the first
@@ -15,7 +15,7 @@ the statistical weakness while preserving the performance and the features of
`PCG64`.
Does this affect me?
-====================
+--------------------
If you
@@ -48,7 +48,7 @@ swamped by the remaining streams in most applications.
.. _upgrading-pcg64-details:
Technical Details
-=================
+-----------------
Like many PRNG algorithms, `PCG64` is constructed from a transition function,
which advances a 128-bit state, and an output function, that mixes the 128-bit