diff --git a/requirements.txt b/requirements.txt
index d2a82bd..891fa50 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,7 +30,7 @@ pkginfo==1.5.0.1
 plotly==4.9.0
 pybind11==2.5.0
 pycparser==2.20
-Pygments==2.6.1
+Pygments==2.7.4
 pymatgen==2020.7.18
 pyparsing==2.4.7
 python-dateutil==2.8.1
diff --git a/test_requirements.txt b/test_requirements.txt
index d2a82bd..891fa50 100644
--- a/test_requirements.txt
+++ b/test_requirements.txt
@@ -30,7 +30,7 @@ pkginfo==1.5.0.1
 plotly==4.9.0
 pybind11==2.5.0
 pycparser==2.20
-Pygments==2.6.1
+Pygments==2.7.4
 pymatgen==2020.7.18
 pyparsing==2.4.7
 python-dateutil==2.8.1