diff --git a/requirements.txt b/requirements.txt
index e3271ef..e3b7925 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -74,7 +74,7 @@ py==1.8.0
 pyasn1==0.4.8
 pyasn1-modules==0.2.7
 pycparser==2.19
-Pygments==2.5.2
+Pygments==2.7.4
 PyNEST==2.14.0
 pyOpenSSL==19.1.0
 pyparsing==2.4.5