diff --git a/tests/requirements.txt b/tests/requirements.txt
index 765ebbe..ef15351 100644
--- a/tests/requirements.txt
+++ b/tests/requirements.txt
@@ -4,7 +4,7 @@ docutils==0.14
 flake8==3.5.0
 pycodestyle==2.3.1
 pyflakes==1.6.0
-pygments==2.2.0
+pygments==2.7.4
 pytest==3.3.1
 pytest-cov==2.5.1
 pytest-isort==0.1.0