diff --git a/pkgs/development/tools/ko/default.nix b/pkgs/development/tools/ko/default.nix
index f7add96fbad9..490ea3241049 100644
--- a/pkgs/development/tools/ko/default.nix
+++ b/pkgs/development/tools/ko/default.nix
@@ -7,13 +7,13 @@
 
 buildGoModule rec {
   pname = "ko";
-  version = "0.11.2";
+  version = "0.12.0";
 
   src = fetchFromGitHub {
-    owner = "google";
+    owner = "ko-build";
     repo = pname;
     rev = "v${version}";
-    sha256 = "sha256-BwK49dSt3D2BrYvluDOBYIH5qEt59HC1hssHl1D2Heg=";
+    sha256 = "sha256-hhPV40e5wB2/VcdigqgjffDW4X1ZDddXTZiCUBijtHQ=";
   };
   vendorSha256 = null;
 
@@ -36,6 +36,10 @@ buildGoModule rec {
     # resolves some complaints from ko
     export GOROOT="$(go env GOROOT)"
     git init
+
+    # ko tests will fail if any of those env are set, as ko tries
+    # to make sure it can build and target multiple GOOS/GOARCH
+    unset GOOS GOARCH GOARM
   '';
 
   postInstall = ''
@@ -46,8 +50,8 @@ buildGoModule rec {
   '';
 
   meta = with lib; {
-    homepage = "https://github.com/google/ko";
-    changelog = "https://github.com/google/ko/releases/tag/v${version}";
+    homepage = "https://github.com/ko-build/ko";
+    changelog = "https://github.com/ko-build/ko/releases/tag/v${version}";
     description = "Build and deploy Go applications on Kubernetes";
     longDescription = ''
       ko is a simple, fast container image builder for Go applications.
@@ -56,6 +60,6 @@ buildGoModule rec {
       ko also includes support for simple YAML templating which makes it a powerful tool for Kubernetes applications.
     '';
     license = licenses.asl20;
-    maintainers = with maintainers; [ nickcao jk ];
+    maintainers = with maintainers; [ nickcao jk vdemeester ];
   };
 }