diff --git a/pkgs/development/libraries/simpleitk/default.nix b/pkgs/development/libraries/simpleitk/default.nix
index 9573afda0b30..a5a2c8846fe0 100644
--- a/pkgs/development/libraries/simpleitk/default.nix
+++ b/pkgs/development/libraries/simpleitk/default.nix
@@ -2,7 +2,7 @@
 
 stdenv.mkDerivation rec {
   pname = "simpleitk";
-  version = "2.1.1";
+  version = "2.1.1.1";
 
   outputs = [ "out" "dev" ];
 
@@ -10,7 +10,7 @@ stdenv.mkDerivation rec {
     owner = "SimpleITK";
     repo = "SimpleITK";
     rev = "v${version}";
-    sha256 = "0ShUo9UVkliROIIR5bJtqlzESByfq9SQ1+Hy/40vJ50=";
+    sha256 = "sha256-W53TbrgIwY9jj0GXz1LIrsBO9YL4VkH6531UYV0IqbE=";
   };
 
   nativeBuildInputs = [ cmake swig4 ];