diff --git a/docs/contributing.rst b/docs/contributing.rst
index 7bbac19..83fd2a3 100644
--- a/docs/contributing.rst
+++ b/docs/contributing.rst
@@ -81,7 +81,7 @@ Submit a pull request on Github.
 Testing performance
 ===================
 
-To get detailed information about performance, run the tests with the ==profile flag:
+To get detailed information about performance, run the tests with the --profile flag:
 
 .. code:: bash
 
diff --git a/requirements.txt b/requirements.txt
index 32ffc70..96b32f0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 CacheControl==0.11.7
-cement==2.6.2
+cement==2.10.2
 lockfile==0.12.2
-pymongo==2.8
+pymongo==3.3
 python-dateutil==2.5.3
-requests==2.9.1
+requests==2.11.1
 ujson==1.35