diff --git a/pkgs/development/python-modules/slicedimage/default.nix b/pkgs/development/python-modules/slicedimage/default.nix
index 3b9aa19062b..e121013c150 100644
--- a/pkgs/development/python-modules/slicedimage/default.nix
+++ b/pkgs/development/python-modules/slicedimage/default.nix
@@ -16,11 +16,11 @@
 
 buildPythonPackage rec {
   pname = "slicedimage";
-  version = "3.2.0";
+  version = "4.0.5";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "adab09457e22465f05998fdcf8ea14179185f8e780a4021526ba163dd476cd02";
+    sha256 = "c8e8759a013a0936ec9f7ffcd37fc64df69af913b4f26342c2501b8c3663d9bb";
   };
 
   propagatedBuildInputs = [