diff --git a/README.rst b/README.rst
index cc54252753..eb9282e8a4 100644
--- a/README.rst
+++ b/README.rst
@@ -36,7 +36,7 @@ Global requirements gives us a single place where we can evaluate
 these things so that we can make a global decision for OpenStack on
 the suitability of the library.
 
-Since Havana we've also observed significant CI disruption occuring due to
+Since Havana we've also observed significant CI disruption occurring due to
 upstream releases of software that are are incompatible (whether in small
 or large ways) with OpenStack. So Global Requirements also serves as a control
 point to determine the precise versions of dependencies that will be used
diff --git a/openstack_requirements/project.py b/openstack_requirements/project.py
index 378e268f2f..e7e605e7f8 100644
--- a/openstack_requirements/project.py
+++ b/openstack_requirements/project.py
@@ -179,4 +179,4 @@ def write(project, actions, stdout, verbose, noop=False):
         else:
             raise Exception("Invalid action %r" % (action,))
     if error:
-        raise Exception("Error occured processing %s" % (project['root']))
+        raise Exception("Error occurred processing %s" % (project['root']))