diff --git a/pkgs/development/python-modules/pyelftools/default.nix b/pkgs/development/python-modules/pyelftools/default.nix
index 5686a6ffadb2..258c97a3c112 100644
--- a/pkgs/development/python-modules/pyelftools/default.nix
+++ b/pkgs/development/python-modules/pyelftools/default.nix
@@ -1,18 +1,19 @@
-{ lib, stdenv
+{ lib
 , buildPythonPackage
 , fetchFromGitHub
 , python
+, stdenv
 }:
 
 buildPythonPackage rec {
   pname = "pyelftools";
-  version = "unstable-2020-09-23";
+  version = "0.27";
 
   src = fetchFromGitHub {
     owner = "eliben";
     repo = pname;
-    rev = "ab84e68837113b2d700ad379d94c1dd4a73125ea";
-    sha256 = "sha256-O7l1kj0k8bOSOtZJVzS674oVnM+X3oP00Ybs0qjb64Q=";
+    rev = "v${version}";
+    sha256 = "09igdym2qj2fvfcazbz25qybmgz7ccrn25xn3havfkdkka0z0i3p";
   };
 
   doCheck = stdenv.is64bit && !stdenv.isDarwin;
@@ -25,10 +26,9 @@ buildPythonPackage rec {
   pythonImportsCheck = [ "elftools" ];
 
   meta = with lib; {
-    description = "A library for analyzing ELF files and DWARF debugging information";
+    description = "Python library for analyzing ELF files and DWARF debugging information";
     homepage = "https://github.com/eliben/pyelftools";
     license = licenses.publicDomain;
     maintainers = with maintainers; [ igsha pamplemousse ];
   };
-
 }