diff --git a/requirements.txt b/requirements.txt
index 78cbc84..271baf7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1 @@
-requests==2.10.0
+requests==2.18.4
diff --git a/requirements_dev.txt b/requirements_dev.txt
index 39409d6..6999eda 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,21 +1,25 @@
 alabaster==0.7.8
 astroid==1.4.6
 Babel==2.3.4
+certifi==2017.7.27.1
+chardet==3.0.4
 colorama==0.3.7
 coverage==4.1
 docutils==0.12
+idna==2.6
 imagesize==0.7.1
 Jinja2==2.8
 lazy-object-proxy==1.2.2
 MarkupSafe==0.23
-py==1.4.31
+py==1.4.34
 Pygments==2.1.3
 pylint==1.5.6
-pytest==2.9.2
+pytest==3.2.1
 pytz==2016.4
-requests==2.10.0
+requests==2.18.4
 six==1.10.0
 snowballstemmer==1.2.1
 Sphinx==1.4.3
 sphinx-rtd-theme==0.1.9
+urllib3==1.22
 wrapt==1.10.8