diff --git a/ci/rtd-requirements.txt b/ci/rtd-requirements.txt
index 73d921d7ae..787985d66f 100644
--- a/ci/rtd-requirements.txt
+++ b/ci/rtd-requirements.txt
@@ -21,7 +21,7 @@ jinja2==2.10              # via sphinx, towncrier
 markupsafe==1.1.0         # via jinja2
 outcome==1.0.0
 packaging==18.0           # via sphinx
-pygments==2.3.0           # via sphinx
+pygments==2.3.1           # via sphinx
 pyparsing==2.3.0          # via packaging
 pytz==2018.7              # via babel
 requests==2.21.0          # via sphinx
diff --git a/test-requirements.txt b/test-requirements.txt
index bdcddd940b..6d03869bab 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -36,7 +36,7 @@ py==1.7.0                 # via pytest
 pycodestyle==2.4.0        # via flake8
 pycparser==2.19           # via cffi
 pyflakes==2.0.0           # via flake8
-pygments==2.3.0           # via ipython
+pygments==2.3.1           # via ipython
 pylint==2.2.2
 pyopenssl==18.0.0
 pytest-cov==2.6.0