diff --git a/requirements.txt b/requirements.txt
index 58c0fbd..1415b21 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
-attrs==15.1.0
-typing==3.5.0
+attrs==17.2.0
+typing==3.6.2
diff --git a/requirements_dev.txt b/requirements_dev.txt
index a31984e..0fa52fa 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,7 +1,7 @@
 bumpversion==0.5.3
-wheel==0.23.0
+wheel==0.30.0
 watchdog==0.8.3
-flake8==2.4.1
-tox==2.1.1
-coverage==4.0
-Sphinx==1.3.1
+flake8==3.4.1
+tox==2.9.1
+coverage==4.4.1
+Sphinx==1.6.4