diff --git a/pkgs/development/python-modules/pycryptodome/default.nix b/pkgs/development/python-modules/pycryptodome/default.nix
index 9751eaf7ce79..a086658cd7b7 100644
--- a/pkgs/development/python-modules/pycryptodome/default.nix
+++ b/pkgs/development/python-modules/pycryptodome/default.nix
@@ -1,13 +1,13 @@
 { stdenv, fetchurl, python, buildPythonPackage, gmp }:
 
 buildPythonPackage rec {
-  version = "3.4.7";
+  version = "3.4.9";
   pname = "pycryptodome";
   name = "${pname}-${version}";
 
   src = fetchurl {
     url = "mirror://pypi/p/pycryptodome/${name}.tar.gz";
-    sha256 = "18d8dfe31bf0cb53d58694903e526be68f3cf48e6e3c6dfbbc1e7042b1693af7";
+    sha256 = "00cc7767c7bbe91f15a65a1b2ebe7a08002b8ae8221c1dcecc5c5c9ab6f79753";
   };
 
   meta = {