diff --git a/Doc/constraints.txt b/Doc/constraints.txt
index 66c748eb092d83..909b5e479c79cd 100644
--- a/Doc/constraints.txt
+++ b/Doc/constraints.txt
@@ -11,7 +11,7 @@ imagesize<1.5
 Jinja2<3.2
 packaging<24
 # Pygments==2.15.0 breaks CI
-Pygments<2.16,!=2.15.0
+Pygments!=2.15.0,<2.21
 requests<3
 snowballstemmer<3
 sphinxcontrib-applehelp<1.1
diff --git a/Doc/requirements-oldest-sphinx.txt b/Doc/requirements-oldest-sphinx.txt
index f7e0665bde445d..e43f63269cb2c5 100644
--- a/Doc/requirements-oldest-sphinx.txt
+++ b/Doc/requirements-oldest-sphinx.txt
@@ -26,7 +26,7 @@ imagesize==1.4.1
 Jinja2==2.11.3
 MarkupSafe==1.1.1
 packaging==23.1
-Pygments==2.15.1
+Pygments==2.20.0
 requests==2.31.0
 snowballstemmer==2.2.0
 sphinxcontrib-applehelp==1.0.4