diff --git a/pkgs/development/python-modules/jplephem/default.nix b/pkgs/development/python-modules/jplephem/default.nix
index d945d9c11c56..017d8bda6652 100644
--- a/pkgs/development/python-modules/jplephem/default.nix
+++ b/pkgs/development/python-modules/jplephem/default.nix
@@ -2,11 +2,11 @@
 
 buildPythonPackage rec {
   pname = "jplephem";
-  version = "2.20";
+  version = "2.21";
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-u5htUI6kbGiTaomWiaZE21+grznJpQRCIImgA+yg4fo=";
+    hash = "sha256-NBlLYQaV8huJIXuYUrjautvOgISMs2nZVn7xLcSCjVU=";
   };
 
   propagatedBuildInputs = [ numpy ];