diff --git a/bak/requirements.txt b/bak/requirements.txt
index e71cf59..d721506 100644
--- a/bak/requirements.txt
+++ b/bak/requirements.txt
@@ -142,7 +142,7 @@ pycodestyle==2.4.0
 pycosat==0.6.3
 pycparser==2.18
 pycrypto==2.6.1
-Pygments==2.2.0
+Pygments==2.7.4
 PyHamcrest==1.9.0
 PyJWT==1.6.4
 PyMySQL==0.9.2