diff --git a/requirements/constraints.txt b/requirements/constraints.txt
index a4fe1fc..a754c93 100644
--- a/requirements/constraints.txt
+++ b/requirements/constraints.txt
@@ -5,13 +5,13 @@ args==0.1.0
 Babel==2.4.0
 click==6.7
 clint==0.5.1
-coverage==4.4
+coverage==4.4.1
 coveralls==1.1
 decorator==4.0.11
 docopt==0.6.2
 docutils==0.13.1
 flake8==3.3.0
-freezegun==0.3.8
+freezegun==0.3.9
 imagesize==0.7.1
 ipdb==0.10.3
 ipython==6.0.0
@@ -20,7 +20,7 @@ Jinja2==2.9.6
 -e git+git@github.com:kobinpy/kobin.git@5184a9f6e0b448b41b300d1182a8552398e70a1e#egg=kobin
 MarkupSafe==1.0
 mccabe==0.6.1
-mypy==0.510
+mypy==0.511
 packaging==16.8
 pexpect==4.2.1
 pickleshare==0.7.4
@@ -35,13 +35,13 @@ Pygments==2.2.0
 pyparsing==2.2.0
 python-dateutil==2.6.0
 pytz==2017.2
-requests==2.13.0
+requests==2.14.2
 requests-toolbelt==0.7.1
 simplegeneric==0.8.1
 six==1.10.0
 snowballstemmer==1.2.1
 solar-theme==1.3.2
-Sphinx==1.5.5
+Sphinx==1.5.6
 sphinx-intl==0.9.9
 tox==2.7.0
 traitlets==4.3.2