diff --git a/pkgs/development/python-modules/ripe-atlas-cousteau/default.nix b/pkgs/development/python-modules/ripe-atlas-cousteau/default.nix
index 639d2637f80a..73ee2abda8d1 100644
--- a/pkgs/development/python-modules/ripe-atlas-cousteau/default.nix
+++ b/pkgs/development/python-modules/ripe-atlas-cousteau/default.nix
@@ -11,7 +11,7 @@
 
 buildPythonPackage rec {
   pname = "ripe-atlas-cousteau";
-  version = "1.5.1";
+  version = "2.0.0";
   format = "setuptools";
 
 
@@ -20,8 +20,8 @@ buildPythonPackage rec {
   src = fetchFromGitHub {
     owner = "RIPE-NCC";
     repo = pname;
-    rev = "v${version}";
-    hash = "sha256-EHZt9Po/1wDwDacXUCVGcuVSOwcIkPCT2JCKGchu8G4=";
+    rev = "refs/tags/v${version}";
+    hash = "sha256-z8ZXOiCVYughrbmXfnwtks7NPmYpII2BA0+8mr1cdSQ=";
   };
 
   postPatch = ''