diff --git a/pkgs/development/python-modules/certifi/default.nix b/pkgs/development/python-modules/certifi/default.nix
index 8ccfd2e9efb..07dc701f3b1 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 = "2018.11.29";
+  version = "2019.3.9";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "1dvccavd2fzq4j37w0sznylp92ps14zi6gvlxzm23in0yhzciya7";
+    sha256 = "1bnpw7hrf9i1l9gfxjnzi45hkrvzz0pyn9ia8m4mw7sxhgb08qdj";
   };
 
   meta = {