diff --git a/docs/requirements.txt b/docs/requirements.txt
index a8c1ea3c..2baaa438 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -57,7 +57,7 @@ prompt-toolkit==1.0.15
 ptyprocess==0.5.2
 py==1.4.34
 pycparser==2.18
-Pygments==2.2.0
+Pygments==2.7.4
 pylint==1.7.2
 pyparsing==2.2.0
 PySocks==1.6.7