diff --git a/setup.py b/setup.py
index bb0dc33ba..006e025bc 100644
--- a/setup.py
+++ b/setup.py
@@ -7,7 +7,7 @@
 
 
 def getRequires():
-    deps = ['smtpapi==0.2.0']
+    deps = ['smtpapi==0.3.1']
     if sys.version_info < (2, 7):
         deps.append('unittest2')
     elif (3, 0) <= sys.version_info < (3, 2):