diff --git a/pkgs/development/python-modules/rpy2-rinterface/default.nix b/pkgs/development/python-modules/rpy2-rinterface/default.nix
index bcc4223502a1..d1d8589eefa1 100644
--- a/pkgs/development/python-modules/rpy2-rinterface/default.nix
+++ b/pkgs/development/python-modules/rpy2-rinterface/default.nix
@@ -17,7 +17,7 @@
 }:
 
 buildPythonPackage rec {
-  version = "3.6.3";
+  version = "3.6.4";
   pyproject = true;
   pname = "rpy2-rinterface";
 
@@ -26,7 +26,7 @@ buildPythonPackage rec {
     url = "mirror://pypi/${builtins.substring 0 1 pname}/${pname}/${
       builtins.replaceStrings [ "-" ] [ "_" ] pname
     }-${version}.tar.gz";
-    hash = "sha256-R3vC9R0AetG4VnxdS6GvD1mVFobufxBXagbQg03ld28=";
+    hash = "sha256-4spJyjzqu9zEGtDFk3ZgsiWvbeYfBE6xI3NWlRw3pZA=";
   };
 
   patches = [