diff --git a/docs/requirements.txt b/docs/requirements.txt
index 44a91ddeecc9b..06d161059afa2 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,7 +1,7 @@
 GitPython==2.0.8
 Jinja2==2.10
 MarkupSafe==1.1.0
-Pygments==2.2.0
+Pygments==2.7.4
 alabaster==0.7.10
 babel==2.4.0
 docutils==0.14