diff --git a/docs/tools/requirements.txt b/docs/tools/requirements.txt
index 4106100bfa3b..1554b3e6bffb 100644
--- a/docs/tools/requirements.txt
+++ b/docs/tools/requirements.txt
@@ -23,7 +23,7 @@ nltk==3.5
 nose==1.3.7
 protobuf==3.14.0
 numpy==1.19.2
-Pygments==2.5.2
+Pygments==2.7.4
 pymdown-extensions==8.0
 python-slugify==4.0.1
 PyYAML==5.3.1