diff --git a/pkgs/by-name/de/deno/package.nix b/pkgs/by-name/de/deno/package.nix
index 34c4a78f9bfd..2554001f67c0 100644
--- a/pkgs/by-name/de/deno/package.nix
+++ b/pkgs/by-name/de/deno/package.nix
@@ -29,17 +29,17 @@ let
 in
 rustPlatform.buildRustPackage (finalAttrs: {
   pname = "deno";
-  version = "2.5.3";
+  version = "2.5.6";
 
   src = fetchFromGitHub {
     owner = "denoland";
     repo = "deno";
     tag = "v${finalAttrs.version}";
     fetchSubmodules = true; # required for tests
-    hash = "sha256-UqD9Va33XVX73bjwUdb6woZ3kP/Xz6iBVqV1ceRbXq0=";
+    hash = "sha256-Ppw2fyfFvSmGO+FcEvclkOU7LATOqkYH3wErBdKgWJY=";
   };
 
-  cargoHash = "sha256-OrKg3bOA5AyLQA+LIsHwWpk9DHodhcCVzdKW/S9+mNY=";
+  cargoHash = "sha256-EN87p8wX5QAzf3cWfX8I/+XzYRc9rA5EWj996iUpSPg=";
 
   patches = [
     # Patch out the remote upgrade (deno update) check.
@@ -53,10 +53,6 @@ rustPlatform.buildRustPackage (finalAttrs: {
     ./patches/0002-tests-replace-hardcoded-paths.patch
     ./patches/0003-tests-linux-no-chown.patch
     ./patches/0004-tests-darwin-fixes.patch
-    # some new TS tests don't identify `deno` location from parent actively
-    # running `deno` instance
-    # https://github.com/denoland/deno/pull/30914
-    ./patches/0005-tests-fix-deno-path.patch
   ];
   postPatch = ''
     # Use patched nixpkgs libffi in order to fix https://github.com/libffi/libffi/pull/857
@@ -182,6 +178,7 @@ rustPlatform.buildRustPackage (finalAttrs: {
     "--skip=watcher"
     "--skip=node_unit_tests::_fs_watch_test"
     "--skip=js_unit_tests::fs_events_test"
+    "--skip=js_unit_tests::utime_test"
   ]
   ++ lib.optionals stdenv.hostPlatform.isLinux [
     # Wants to access /etc/resolv.conf: https://github.com/hickory-dns/hickory-dns/issues/2959
diff --git a/pkgs/by-name/de/deno/patches/0005-tests-fix-deno-path.patch b/pkgs/by-name/de/deno/patches/0005-tests-fix-deno-path.patch
deleted file mode 100644
index aab217408237..000000000000
--- a/pkgs/by-name/de/deno/patches/0005-tests-fix-deno-path.patch
+++ /dev/null
@@ -1,34 +0,0 @@
-From 798fc5e7e87c1b985a383b7b92a7e55c82e41efa Mon Sep 17 00:00:00 2001
-From: 06kellyjac <dev@j-k.io>
-Date: Fri, 3 Oct 2025 14:20:53 +0100
-Subject: [PATCH] test: leverage `Deno.execPath()` matching other tests
-
-Currently most TS tests use `Deno.execPath()` to identify where `deno` lives
-In the event deno is not on the `$PATH` these tests will fail.
-If deno is on the `$PATH` you can end up testing the wrong instance of `deno`.
----
- tests/unit/process_test.ts | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/tests/unit/process_test.ts b/tests/unit/process_test.ts
-index 7b82fe5ba782f5..1c26a6f990d1b0 100644
---- a/tests/unit/process_test.ts
-+++ b/tests/unit/process_test.ts
-@@ -623,7 +623,7 @@ Deno.test(
- 
-     // @ts-ignore `Deno.run()` was soft-removed in Deno 2.
-     const p = Deno.run({
--      cmd: ["deno", "run", "--watch", tempFile],
-+      cmd: [Deno.execPath(), "run", "--watch", tempFile],
-       stdout: "piped",
-       stderr: "null",
-     });
-@@ -661,7 +661,7 @@ Deno.serve({ signal: ac.signal }, () => new Response("Hello World"));
- 
-     // @ts-ignore `Deno.run()` was soft-removed in Deno 2.
-     const p = Deno.run({
--      cmd: ["deno", "run", "--watch", tempFile],
-+      cmd: [Deno.execPath(), "run", "--watch", tempFile],
-       stdout: "piped",
-       stderr: "null",
-     });