diff --git a/pkgs/development/python-modules/rpy2/default.nix b/pkgs/development/python-modules/rpy2/default.nix
index 4f04a7b5ef5b..b7e546a01be5 100644
--- a/pkgs/development/python-modules/rpy2/default.nix
+++ b/pkgs/development/python-modules/rpy2/default.nix
@@ -24,13 +24,13 @@
 }:
 
 buildPythonPackage rec {
-    version = "3.5.5";
+    version = "3.5.6";
     pname = "rpy2";
 
     disabled = isPyPy;
     src = fetchPypi {
       inherit version pname;
-      sha256 = "sha256-olLEDiHPTyOsbhO//cuCtZALScMEPtj9MdpcYftY0Dc=";
+      sha256 = "sha256-NATxAx0tj/ihACZWq445S4rBbdNMpDr2je7RAvOW53E=";
     };
 
     patches = [