diff --git a/pkgs/development/python-modules/pycryptodomex/default.nix b/pkgs/development/python-modules/pycryptodomex/default.nix
index aa838bc928ea..b5487a24b77c 100644
--- a/pkgs/development/python-modules/pycryptodomex/default.nix
+++ b/pkgs/development/python-modules/pycryptodomex/default.nix
@@ -2,7 +2,7 @@
 
 buildPythonPackage rec {
   pname = "pycryptodomex";
-  version = "3.6.2";
+  version = "3.6.4";
 
   meta = {
     description = "A self-contained cryptographic library for Python";
@@ -12,6 +12,6 @@ buildPythonPackage rec {
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "8ed51799f6c060b4f62459e1bd9f3b3855bec6fa68202e76639d628001fdf3b7";
+    sha256 = "4daabe7c0404e673b9029aa43761c779b9b4df2cbe11ccd94daded6a0acd8808";
   };
 }