diff --git a/requirements.txt b/requirements.txt
index 7f9a469..42d6e9e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,7 +27,7 @@ pickleshare==0.7.4
 prompt-toolkit==1.0.15
 psycopg2==2.7.4
 ptyprocess==0.5.2
-Pygments==2.2.0
+Pygments==2.7.4
 pysam==0.14.1
 python-jsonschema-objects==0.2.4
 python-slugify==1.2.5