diff --git a/pkgs/development/python-modules/pynrrd/default.nix b/pkgs/development/python-modules/pynrrd/default.nix
index 0d7c617614d4..0f178dc4cc1b 100644
--- a/pkgs/development/python-modules/pynrrd/default.nix
+++ b/pkgs/development/python-modules/pynrrd/default.nix
@@ -11,7 +11,7 @@
 
 buildPythonPackage rec {
   pname = "pynrrd";
-  version = "1.1.1";
+  version = "1.1.3";
   pyproject = true;
 
   disabled = pythonOlder "3.7";
@@ -20,7 +20,7 @@ buildPythonPackage rec {
     owner = "mhe";
     repo = pname;
     tag = "v${version}";
-    hash = "sha256-B/G46/9Xf1LRu02p0X4/UeW1RYotSXKXRO9VZDPhkNU=";
+    hash = "sha256-qu3s3XswJCUchqYfYMuqIzI4sfeXrttvXSEW9/GSENA=";
   };
 
   build-system = [ setuptools ];