diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 7f5f176ebc35..5772d7a7ed52 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -4798,14 +4798,14 @@ pythonPackages = modules // import ./python-packages-generated.nix {
 
 
   psycopg2 = buildPythonPackage rec {
-    name = "psycopg2-2.5.1";
+    name = "psycopg2-2.5.2";
 
     # error: invalid command 'test'
     doCheck = false;
 
     src = fetchurl {
-      url = "https://pypi.python.org/packages/source/p/psycopg2/psycopg2-2.5.1.tar.gz";
-      sha256 = "1v7glzzzykbaqj7dhpr0qds9cf4maxmn7f5aazpqnbg0ly40r9v5";
+      url = "https://pypi.python.org/packages/source/p/psycopg2/${name}.tar.gz";
+      sha256 = "0bmxlmi9k995n6pz16awjaap0y02y1v2d31jbxhkqv510f3jsf2h";
     };
 
     propagatedBuildInputs = [ pkgs.postgresql ];