require cffi >= 0.8.1
diff --git a/setup.py b/setup.py
index feed0cd..d03e5ff 100644
--- a/setup.py
+++ b/setup.py
@@ -23,7 +23,7 @@
     exec(f.read(), about)
 
 
-CFFI_DEPENDENCY = "cffi>=0.6"
+CFFI_DEPENDENCY = "cffi>=0.8.1"
 SIX_DEPENDENCY = "six>=1.4.1"
 
 requirements = [