diff --git a/pkgs/development/python-modules/localstack-ext/default.nix b/pkgs/development/python-modules/localstack-ext/default.nix
index 5f1174763f1a..35dcd72230f2 100644
--- a/pkgs/development/python-modules/localstack-ext/default.nix
+++ b/pkgs/development/python-modules/localstack-ext/default.nix
@@ -2,13 +2,17 @@
   lib,
   buildPythonPackage,
   fetchPypi,
+  setuptools,
+  setuptools-scm,
   dill,
   dnslib,
   dnspython,
   plux,
   pyaes,
+  pyotp,
   python-jose,
   requests,
+  python-dateutil,
   tabulate,
 
   # Sensitive downstream dependencies
@@ -18,7 +22,7 @@
 buildPythonPackage rec {
   pname = "localstack-ext";
   version = "3.7.2";
-  format = "setuptools";
+  pyproject = true;
 
   src = fetchPypi {
     pname = "localstack_ext";
@@ -26,32 +30,31 @@ buildPythonPackage rec {
     hash = "sha256-gd+HyZnezgtKrSKJOYtxUZHTPMrrpKWQHGvaIs9FyVs=";
   };
 
-  postPatch = ''
+  build-system = [
+    setuptools
+    setuptools-scm
+  ];
+
+  pythonRemoveDeps = [
     # Avoid circular dependency
-    sed -i '/localstack>=/d' setup.cfg
+    "localstack"
+    "build"
+  ];
 
-    # Pip is unable to resolve attr logic, so it will emit version as 0.0.0
-    substituteInPlace setup.cfg \
-      --replace "version = attr: localstack_ext.__version__" "version = ${version}"
-    cat setup.cfg
-
-    substituteInPlace setup.cfg \
-      --replace "dill==0.3.2" "dill~=0.3.0" \
-      --replace "requests>=2.20.0,<2.26" "requests~=2.20"
-  '';
-
-  propagatedBuildInputs = [
+  dependencies = [
     dill
     dnslib
     dnspython
     plux
     pyaes
+    pyotp
     python-jose
     requests
     tabulate
-  ];
+    python-dateutil
+  ] ++ python-jose.optional-dependencies.cryptography;
 
-  pythonImportsCheck = [ "localstack_ext" ];
+  pythonImportsCheck = [ "localstack" ];
 
   # No tests in repo
   doCheck = false;
@@ -60,10 +63,10 @@ buildPythonPackage rec {
     inherit localstack;
   };
 
-  meta = with lib; {
+  meta = {
     description = "Extensions for LocalStack";
     homepage = "https://github.com/localstack/localstack";
-    license = licenses.asl20;
+    license = lib.licenses.asl20;
     maintainers = [ ];
   };
 }
diff --git a/pkgs/development/python-modules/localstack/default.nix b/pkgs/development/python-modules/localstack/default.nix
index a48d8abefa86..08f03e1856f8 100644
--- a/pkgs/development/python-modules/localstack/default.nix
+++ b/pkgs/development/python-modules/localstack/default.nix
@@ -19,6 +19,7 @@
   rich,
   semver,
   setuptools,
+  setuptools-scm,
   tailer,
 }:
 
@@ -34,7 +35,10 @@ buildPythonPackage rec {
     hash = "sha256-8xdP/qpmfqmXDt1gNhzkAGlBR6dJYznKr9+/Un6N7mA=";
   };
 
-  build-system = [ setuptools ];
+  build-system = [
+    setuptools
+    setuptools-scm
+  ];
 
   dependencies = [
     apispec