diff --git a/pkgs/development/tools/pet/default.nix b/pkgs/development/tools/pet/default.nix
index bf4b4f0e633d..6446c475f355 100644
--- a/pkgs/development/tools/pet/default.nix
+++ b/pkgs/development/tools/pet/default.nix
@@ -2,16 +2,16 @@
 
 buildGoModule rec {
   pname = "pet";
-  version = "0.8.4";
+  version = "0.9.0";
 
   src = fetchFromGitHub {
     owner = "knqyf263";
     repo = "pet";
     rev = "v${version}";
-    sha256 = "sha256-XFizQxegyMIAUEKT8/kzWyC4TWICMUE7SuHQsTNpK4w=";
+    sha256 = "sha256-h6e7X93uU/rdTrCz5xJcNtpDbzcF/2Z186b4dHkp9jM=";
   };
 
-  vendorHash = "sha256-XvSg7EhFdK7wt1Eei56pj/emiE4qsVJkOpgPNsnDNc4=";
+  vendorHash = "sha256-hf2I5xHloqcXDlC8frxtCiQx2PlTmKmyd1mrzF2UdDo=";
 
   ldflags = [
     "-s" "-w" "-X=github.com/knqyf263/pet/cmd.version=${version}"