diff --git a/var/spack/repos/builtin/packages/py-certifi/package.py b/var/spack/repos/builtin/packages/py-certifi/package.py
index d9cd07b473a..7008f4551be 100644
--- a/var/spack/repos/builtin/packages/py-certifi/package.py
+++ b/var/spack/repos/builtin/packages/py-certifi/package.py
@@ -15,6 +15,7 @@ class PyCertifi(PythonPackage):
 
     import_modules = ['certifi']
 
+    version('2017.4.17', sha256='f7527ebf7461582ce95f7a9e03dd141ce810d40590834f4ec20cddd54234c10a')
     version('2017.1.23',  'b72521a8badff5e89a8eabea586d79ab')
     version('2016.02.28', '5ccfc23bd5e931863f0b01ef3e9d2dbd3bef0e1b')