diff --git a/pkgs/development/python-modules/certifi/default.nix b/pkgs/development/python-modules/certifi/default.nix
index ef8d1e52fe07..8ccfd2e9efb7 100644
--- a/pkgs/development/python-modules/certifi/default.nix
+++ b/pkgs/development/python-modules/certifi/default.nix
@@ -5,11 +5,11 @@
 
 buildPythonPackage rec {
   pname = "certifi";
-  version = "2018.10.15";
+  version = "2018.11.29";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "6d58c986d22b038c8c0df30d639f23a3e6d172a05c3583e766f4c0b785c0986a";
+    sha256 = "1dvccavd2fzq4j37w0sznylp92ps14zi6gvlxzm23in0yhzciya7";
   };
 
   meta = {
@@ -18,4 +18,4 @@ buildPythonPackage rec {
     license = lib.licenses.isc;
     maintainers = with lib.maintainers; [ koral ];
   };
-}
\ No newline at end of file
+}