diff --git a/pkgs/tools/graphics/oxipng/default.nix b/pkgs/tools/graphics/oxipng/default.nix
index 23f9692597a3..4650db3e506d 100644
--- a/pkgs/tools/graphics/oxipng/default.nix
+++ b/pkgs/tools/graphics/oxipng/default.nix
@@ -1,15 +1,15 @@
 { lib, stdenv, fetchCrate, rustPlatform }:
 
 rustPlatform.buildRustPackage rec {
-  version = "9.0.0";
+  version = "9.1.1";
   pname = "oxipng";
 
   src = fetchCrate {
     inherit version pname;
-    hash = "sha256-1OpSweosYiqtLqCcAw1EsAtBAYVc/VH8kRtVSpmTytM=";
+    hash = "sha256-I+1yQQEzhGApvHxPM8W1wySQtDglGp3V4vkwoTd92EU=";
   };
 
-  cargoHash = "sha256-kPdAfqMNOoQPSdv+VLRDUr6AXGPy47UnldXwvpwKp6s=";
+  cargoHash = "sha256-miXrQVFahz9WYRCduSF5+RSY4j/XNEt8lnSuOohBUFU=";
 
   doCheck = !stdenv.isAarch64 && !stdenv.isDarwin;