diff --git a/pkgs/development/python-modules/jax/default.nix b/pkgs/development/python-modules/jax/default.nix
index 34665bb8275..332cac3133c 100644
--- a/pkgs/development/python-modules/jax/default.nix
+++ b/pkgs/development/python-modules/jax/default.nix
@@ -19,7 +19,7 @@ let
 in
 buildPythonPackage rec {
   pname = "jax";
-  version = "0.3.3";
+  version = "0.3.4";
   format = "setuptools";
 
   disabled = pythonOlder "3.7";
@@ -27,8 +27,8 @@ buildPythonPackage rec {
   src = fetchFromGitHub {
     owner = "google";
     repo = pname;
-    rev = "${pname}-v${version}";
-    sha256 = "12k5kzgs2cxf9nvcc10a9ldl4zn68b5cnkhchfj1s7f61abx6nq3";
+    rev = "jax-v${version}";
+    sha256 = "sha256-RZqSJP2vtt8U6nmftV2VzfkMGkkk3100QqsjI7PpQbc=";
   };
 
   patches = [