diff --git a/requirements.txt b/requirements.txt
index e6fbb3a..a7c3fc0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,7 @@ pexpect==4.2.1
 pickleshare==0.7.4
 prompt-toolkit==1.0.14
 ptyprocess==0.5.2
-Pygments==2.2.0
+Pygments==2.7.4
 requests==2.18.1
 simplegeneric==0.8.1
 six==1.10.0