diff --git a/requirements-dev.txt b/requirements-dev.txt
index 18f7807..c7a14c6 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -13,12 +13,12 @@ py==1.4.33
 pygments==2.2.0
 pytest-cov==2.5.1
 pytest-timeout==1.2.0
-pytest==3.1.0
+pytest==3.1.1
 pytz==2017.2
-requests==2.16.5
+requests==2.17.3
 six==1.10.0
 snowballstemmer==1.2.1
-sphinx==1.6.1
+sphinx==1.6.2
 sphinxcontrib-websupport==1.0.1
 typing==3.6.1
 urllib3==1.21.1
diff --git a/requirements.txt b/requirements.txt
index e9bdffb..8e999c2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ idna==2.5
 pbr==3.0.1
 psutil==5.2.2
 pytz==2017.2
-requests==2.16.5
+requests==2.17.3
 six==1.10.0
-stevedore==1.21.0
+stevedore==1.22.0
 urllib3==1.21.1