diff --git a/requirements.txt b/requirements.txt
index de86008..39da055 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -41,7 +41,7 @@ pickleshare==0.7.4
 prompt-toolkit==1.0.14
 pyasn1==0.2.3
 pycparser==2.17
-Pygments==2.2.0
+Pygments==2.7.4
 pyOpenSSL==17.0.0
 pyparsing==2.2.0
 python-dateutil==2.6.0