diff --git a/pkgs/development/python-modules/gensim/default.nix b/pkgs/development/python-modules/gensim/default.nix
index b29822a507cd..c79fbb6b9042 100644
--- a/pkgs/development/python-modules/gensim/default.nix
+++ b/pkgs/development/python-modules/gensim/default.nix
@@ -11,12 +11,12 @@
 
 buildPythonPackage rec {
   pname = "gensim";
-  version = "3.8.3";
+  version = "4.0.0";
   disabled = !isPy3k;
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0rx37vnjspjl45v7bj123xwsjfgbwv91v8zpqpli8lgpf42xnskq";
+    sha256 = "a9c9fed52e2901ad04f9caf73a5dd782e5ce8054f71b346d72f04ddff1b7b432";
   };
 
   propagatedBuildInputs = [ smart-open numpy six scipy ];