diff --git a/requirements.txt b/requirements.txt
index b74a4db..45f3d0a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,7 +21,7 @@ prompt-toolkit==1.0.15
 ptyprocess==0.5.2
 pyasn1==0.3.7
 pycparser==2.18
-Pygments==2.2.0
+Pygments==2.7.4
 PyNaCl==1.2.0
 requests==2.18.4
 simplegeneric==0.8.1