diff --git a/requirements.txt b/requirements.txt
index 45a8fd3..1e8a3bc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -51,7 +51,7 @@ pickleshare==0.7.5
 prompt-toolkit==2.0.7
 psycopg2==2.7.5
 pycparser==2.19
-Pygments==2.2.0
+Pygments==2.7.4
 pyOpenSSL==18.0.0
 pyparsing==2.2.2
 pyproj==1.9.5.1