diff --git a/requirements.txt b/requirements.txt
index 2024cf92..11d7f32a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -37,7 +37,7 @@ Pillow==2.9.0
 pycparser==2.10
 py-dateutil==2.2
 pyflakes==1.5.0
-pygments==2.1
+pygments==2.18.0
 pylab
 pyparsing==2.0.1
 PyPDF2==1.22