diff --git a/pkgs/applications/networking/cluster/istioctl/default.nix b/pkgs/applications/networking/cluster/istioctl/default.nix
index 0deb88ce4230..6c05705e565c 100644
--- a/pkgs/applications/networking/cluster/istioctl/default.nix
+++ b/pkgs/applications/networking/cluster/istioctl/default.nix
@@ -2,15 +2,15 @@
 
 buildGoModule rec {
   pname = "istioctl";
-  version = "1.21.0";
+  version = "1.21.1";
 
   src = fetchFromGitHub {
     owner = "istio";
     repo = "istio";
     rev = version;
-    hash = "sha256-d+4WiMjP9L9tMrShTadXA1k/l1U3jYj/ihP0g3HuYRE=";
+    hash = "sha256-zWg0UK9RHq/25GWpsvb/U5YJPkgd7aUC/Dva8jGFwfo=";
   };
-  vendorHash = "sha256-8nvcxBF+ygWkMLbGwJvj1NjGL06xh6mNZvaEbZJw0TM=";
+  vendorHash = "sha256-23t1xJPRip0ojXmUl1qlk6QJsYHT+9EAS080m6c0d6U=";
 
   nativeBuildInputs = [ installShellFiles ];