diff --git a/pkgs/development/python-modules/astropy/default.nix b/pkgs/development/python-modules/astropy/default.nix
index 4901b798955..acbd7c2ec65 100644
--- a/pkgs/development/python-modules/astropy/default.nix
+++ b/pkgs/development/python-modules/astropy/default.nix
@@ -7,7 +7,7 @@
 
 buildPythonPackage rec {
   pname = "astropy";
-  version = "3.0.3";
+  version = "3.0.4";
 
   disabled = !isPy3k; # according to setup.py
 
@@ -15,7 +15,7 @@ buildPythonPackage rec {
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "6af07abe5e263820a3dec93832a6ad74005013071490e125afbc6514411721da";
+    sha256 = "f5d37d20632ba74bd0b12a85179c12f64a9ea037ffc916d8a2de3be4f4656c76";
   };
 
   propagatedBuildInputs = [ pytest numpy ]; # yes it really has pytest in install_requires