diff --git a/requirements.txt b/requirements.txt
index a5b95ed..a870d4a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -45,7 +45,7 @@ pickleshare==0.7.5
 plotly==3.6.1
 prompt-toolkit==2.0.9
 pyasn1==0.4.5
-Pygments==2.3.1
+Pygments==2.7.4
 PyInstaller==3.4
 pyrsistent==0.14.11
 python-dateutil==2.8.0