diff --git a/requirements/edx/development.txt b/requirements/edx/development.txt
index f0eb6fe0028bf3e7fc85a02f45f8d4a95c1ae376..864d7e0815842e1f736acdeea0f5c9218635a7a1 100644
--- a/requirements/edx/development.txt
+++ b/requirements/edx/development.txt
@@ -320,7 +320,7 @@ text-unidecode==1.2
 tincan==0.0.5
 toml==0.10.0
 tox-battery==0.5.1
-tox==3.11.1
+tox==3.12.1
 transifex-client==0.13.6
 twisted==19.2.0
 typing==3.6.6
diff --git a/requirements/edx/testing.txt b/requirements/edx/testing.txt
index a4c5f7a6f5b6b0550eb12fdd4ce475230579bb79..43db85c7c3b8377794e12b12e86808fa8619117b 100644
--- a/requirements/edx/testing.txt
+++ b/requirements/edx/testing.txt
@@ -307,7 +307,7 @@ text-unidecode==1.2       # via faker
 tincan==0.0.5
 toml==0.10.0              # via tox
 tox-battery==0.5.1
-tox==3.11.1
+tox==3.12.1
 transifex-client==0.13.6
 twisted==19.2.0           # via scrapy
 typing==3.6.6             # via flake8