diff --git a/requirements_py27_dev.txt b/requirements_py27_dev.txt
index 1a293f4..2a94c54 100644
--- a/requirements_py27_dev.txt
+++ b/requirements_py27_dev.txt
@@ -67,7 +67,7 @@ pydot2==1.0.33
 pydotplus==2.0.2
 pyenchant==1.6.8
 pyflakes==1.5.0
-Pygments==2.2.0
+Pygments==2.7.4
 pygraphviz==1.3.1
 pylint==1.6.5
 pyparsing==2.1.10
diff --git a/requirements_py3_dev.txt b/requirements_py3_dev.txt
index d1c99f0..e6f20ca 100644
--- a/requirements_py3_dev.txt
+++ b/requirements_py3_dev.txt
@@ -64,7 +64,7 @@ pydot2==1.0.33
 pydotplus==2.0.2
 pyenchant==1.6.8
 pyflakes==1.5.0
-Pygments==2.2.0
+Pygments==2.7.4
 pygraphviz==1.3.1
 pylint==1.6.5
 pyparsing==2.1.10