diff --git a/pkgs/development/python-modules/zodbpickle/default.nix b/pkgs/development/python-modules/zodbpickle/default.nix
index a9d99274afe..1e577fc487c 100644
--- a/pkgs/development/python-modules/zodbpickle/default.nix
+++ b/pkgs/development/python-modules/zodbpickle/default.nix
@@ -5,12 +5,12 @@
 
 buildPythonPackage rec {
   pname = "zodbpickle";
-  version = "1.0.3";
+  version = "1.0.4";
   disabled = isPyPy; # https://github.com/zopefoundation/zodbpickle/issues/10
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0avr63rka9lrqngjfmny7hdds4klmg1nriwc7n3kgyrp44z2lk7c";
+    sha256 = "0n4hng2zil1j8sbz0b83pxx8ndlh34h2mnmli3bqjmnrbry5zlr5";
   };
 
   # fails..