diff --git a/detectron2/requirements.txt b/detectron2/requirements.txt
index 4ccb292..08c22ea 100644
--- a/detectron2/requirements.txt
+++ b/detectron2/requirements.txt
@@ -43,7 +43,7 @@ pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pycocotools==2.0.0
 pydot==1.4.1
-Pygments==2.5.2
+Pygments==2.7.4
 pyparsing==2.4.6
 PyQt5==5.14.1
 PyQt5-sip==12.7.1