diff --git a/pkgs/development/python-modules/pyasn1/default.nix b/pkgs/development/python-modules/pyasn1/default.nix
index f44cfef8a29..f8925cd3b52 100644
--- a/pkgs/development/python-modules/pyasn1/default.nix
+++ b/pkgs/development/python-modules/pyasn1/default.nix
@@ -2,11 +2,11 @@
 
 buildPythonPackage rec {
   pname = "pyasn1";
-  version = "0.4.5";
+  version = "0.4.7";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "da2420fe13a9452d8ae97a0e478adde1dee153b11ba832a95b223a2ba01c10f7";
+    sha256 = "a9495356ca1d66ed197a0f72b41eb1823cf7ea8b5bd07191673e8147aecf8604";
   };
 
   meta = with stdenv.lib; {