diff --git a/requirements.txt b/requirements.txt
index ef87e1e..9a7c8fb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -55,7 +55,7 @@ pyasn1==0.4.4
 pyasn1-modules==0.2.2
 pycparser==2.19
 pyenchant==2.0.0
-Pygments==2.2.0
+Pygments==2.7.4
 PyHamcrest==1.9.0
 pyOpenSSL==18.0.0
 python-utils==2.3.0