diff --git a/requirements-dev.txt b/requirements-dev.txt
index 2e3500d..16b89d9 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -7,7 +7,7 @@ mock==2.0.0
 mock-open==1.3.1
 pbr==3.1.1                # via mock
 pluggy==0.6.0             # via tox
-py==1.5.2                 # via tox
+py==1.10.0                 # via tox
 pycodestyle==2.3.1
 pytz==2018.3              # via django
 pyyaml==3.12
diff --git a/requirements-test.txt b/requirements-test.txt
index fe51e86..9896e75 100644
--- a/requirements-test.txt
+++ b/requirements-test.txt
@@ -9,7 +9,7 @@ mock==2.0.0
 mock-open==1.3.1
 pbr==3.1.1                # via mock
 pluggy==0.6.0             # via pytest
-py==1.5.2                 # via pytest
+py==1.10.0                 # via pytest
 pytest==3.4.2
 pytest-cov==2.5.1
 pytest-django==3.1.2