diff --git a/requirements.txt b/requirements.txt
index c6795f0..b4ae49a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 pip==20.1.1 				# The PyPA recommended tool for installing Python packages.
 wheel==0.34.2 				# A built-package format for Python
 Sphinx==3.1.1 				# makes it easy to create intelligent and beautiful documentation
-Pygments==2.3.1   			# generic syntax highlighter 
+Pygments==2.7.4   			# generic syntax highlighter 
 matplotlib==3.2.2 			# Python plotting package
 numpy==1.18.5 				# NumPy is the fundamental package for array computing with Python.
 #asn1crypto==0.24.0  		# Fast ASN.1 parser and serializer