diff --git a/pkgs/development/python-modules/dugong/default.nix b/pkgs/development/python-modules/dugong/default.nix
index 20f4bc7e0c33..09faabb98cc6 100644
--- a/pkgs/development/python-modules/dugong/default.nix
+++ b/pkgs/development/python-modules/dugong/default.nix
@@ -2,12 +2,13 @@
 
 buildPythonPackage rec {
   pname = "dugong";
-  version = "3.5";
+  version = "3.7.4";
 
   disabled = pythonOlder "3.3"; # Library does not support versions older than 3.3
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0y0rdxbiwm03zv6vpvapqilrird3h8ijz7xmb0j7ds5j4p6q3g24";
+    extension = "tar.bz2";
+    sha256 = "1fb9kwib6jsd09bxiz70av6g0blscygkx7xzaz1b7ibd28ms77zd";
   };
 }