diff --git a/requirements-cidocs.txt b/requirements-cidocs.txt
index 947688c13c06..1978adcaffd7 100644
--- a/requirements-cidocs.txt
+++ b/requirements-cidocs.txt
@@ -3,5 +3,5 @@ sphinx-jinja==1.1.0
 sphinx-rtd-theme==0.5.2
 sphinxcontrib-spelling==7.2.1
 sphinxcontrib-websupport==1.2.4
-Pygments==2.9.0
+Pygments==2.15.0
 towncrier==21.3.0