diff --git a/pkgs/development/web/deno/default.nix b/pkgs/development/web/deno/default.nix
index 45606151e28d..b932e1b550cf 100644
--- a/pkgs/development/web/deno/default.nix
+++ b/pkgs/development/web/deno/default.nix
@@ -18,16 +18,16 @@ let
 in
 rustPlatform.buildRustPackage rec {
   pname = "deno";
-  version = "1.3.3";
+  version = "1.5.0";
 
   src = fetchFromGitHub {
     owner = "denoland";
     repo = pname;
     rev = "v${version}";
-    sha256 = "0jbnx23f1323sh1rfx8rza2pzr4li4199wblrl4vw4zp5hj4qnkm";
+    sha256 = "1kl3s5kv3wwh4br6zf0f56bffzjwhgzga93zg39mqry8jvwxp6dx";
     fetchSubmodules = true;
   };
-  cargoSha256 = "08zi3ynbi44rdgid9qalgsb5g8dcwclr6ynwxvhi8r0v5i7swwrx";
+  cargoSha256 = "1m3wd2gjy2b8a3x9wm49n9z02165afv4c3n13pnqsxcqmd9a764f";
 
   # Install completions post-install
   nativeBuildInputs = [ installShellFiles ];
@@ -54,6 +54,9 @@ rustPlatform.buildRustPackage rec {
 
   # TODO: Move to enhanced installShellCompletion when merged: PR #83630
   postInstall = ''
+    # remove test plugin and test server
+    rm -rf $out/lib $out/bin/test_server
+
     $out/bin/deno completions bash > deno.bash
     $out/bin/deno completions fish > deno.fish
     $out/bin/deno completions zsh  > _deno
diff --git a/pkgs/development/web/deno/deps.nix b/pkgs/development/web/deno/deps.nix
index f6baca6fb016..09c7b3973d9a 100644
--- a/pkgs/development/web/deno/deps.nix
+++ b/pkgs/development/web/deno/deps.nix
@@ -2,11 +2,11 @@
 {}:
 rec {
   rustyV8Lib = {
-    version = "0.9.1";
+    version = "0.12.0";
     sha256s = {
-      x86_64-linux = "07zph4x3k659ywld27b60as7j06bdbab2ws1pf67iwg7w6h7iash";
-      aarch64-linux = "0w9mbsdpkrla3ayaswpdjhiqs74h23qi2sv9355h138pw431ymnx";
-      x86_64-darwin = "091kzdg431lvkvcy0401di3if53pii0isk5ipfpsvic82kr7vaqk";
+      x86_64-linux = "18pim960fh18wrdkhirlj4hnnbxrk172r7yksdn2k5z9lgccighg";
+      aarch64-linux = "0d1c8kcz44n1mqprspnshzbqlqw7mq7vryxpmd49gw3fvhcy66y7";
+      x86_64-darwin = "1pc2dfq8p1a8dahkc4g8r6b9zwnvds60zc2lgbf8cj5n0ijd06y1";
     };
   };
 }