diff --git a/pkgs/development/tools/rust/cargo-duplicates/default.nix b/pkgs/development/tools/rust/cargo-duplicates/default.nix
new file mode 100644
index 000000000000..a3983162a93b
--- /dev/null
+++ b/pkgs/development/tools/rust/cargo-duplicates/default.nix
@@ -0,0 +1,46 @@
+{ lib
+, rustPlatform
+, fetchFromGitHub
+, curl
+, pkg-config
+, libgit2
+, openssl
+, zlib
+, stdenv
+, darwin
+}:
+
+rustPlatform.buildRustPackage rec {
+  pname = "cargo-duplicates";
+  version = "0.5.1";
+
+  src = fetchFromGitHub {
+    owner = "Keruspe";
+    repo = "cargo-duplicates";
+    rev = "v${version}";
+    hash = "sha256-e0cegK4obUVIJyx5XKF+xicvkRvQwuObwB8tprrJnrw=";
+  };
+
+  cargoHash = "sha256-i1IyHCa/w4DOGlPWjDE4IbVm3s/40DIwjwUGIMTYH4Y=";
+
+  nativeBuildInputs = [
+    curl
+    pkg-config
+  ];
+
+  buildInputs = [
+    curl
+    libgit2
+    openssl
+    zlib
+  ] ++ lib.optionals stdenv.isDarwin [
+    darwin.apple_sdk.frameworks.Security
+  ];
+
+  meta = with lib; {
+    description = "A cargo subcommand for displaying when different versions of a same dependency are pulled in";
+    homepage = "https://github.com/Keruspe/cargo-duplicates";
+    license = licenses.mit;
+    maintainers = with maintainers; [ figsoda ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 8105c1c69cc3..bd093a813e8e 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -16539,6 +16539,7 @@ with pkgs;
   cargo-deb = callPackage ../development/tools/rust/cargo-deb { };
   cargo-deps = callPackage ../development/tools/rust/cargo-deps { };
   cargo-docset = callPackage ../development/tools/rust/cargo-docset { };
+  cargo-duplicates = callPackage ../development/tools/rust/cargo-duplicates { };
   cargo-edit = callPackage ../development/tools/rust/cargo-edit {
     inherit (darwin.apple_sdk.frameworks) Security;
   };