diff --git a/pkgs/development/python-modules/invocations/default.nix b/pkgs/development/python-modules/invocations/default.nix
index 1a8ee27a6528..d0603e412008 100644
--- a/pkgs/development/python-modules/invocations/default.nix
+++ b/pkgs/development/python-modules/invocations/default.nix
@@ -1,6 +1,7 @@
 {
   lib,
   buildPythonPackage,
+  build,
   blessed,
   fetchFromGitHub,
   invoke,
@@ -13,13 +14,14 @@
   pytest-relaxed,
   pytest-mock,
   icecream,
+  setuptools,
   pip,
 }:
 
 buildPythonPackage rec {
   pname = "invocations";
   version = "4.0.2";
-  format = "setuptools";
+  pyproject = true;
 
   src = fetchFromGitHub {
     owner = "pyinvoke";
@@ -31,11 +33,14 @@ buildPythonPackage rec {
   patches = [ ./replace-blessings-with-blessed.patch ];
 
   postPatch = ''
-    substituteInPlace setup.py \
-      --replace "semantic_version>=2.4,<2.7" "semantic_version"
+    substituteInPlace pyproject.toml \
+      --replace-fail "semantic_version>=2.4,<2.7" "semantic_version"
   '';
 
-  propagatedBuildInputs = [
+  build-system = [ setuptools ];
+
+  dependencies = [
+    build
     blessed
     invoke
     releases
diff --git a/pkgs/development/python-modules/invocations/replace-blessings-with-blessed.patch b/pkgs/development/python-modules/invocations/replace-blessings-with-blessed.patch
index fe03889e8555..625c60478e5f 100644
--- a/pkgs/development/python-modules/invocations/replace-blessings-with-blessed.patch
+++ b/pkgs/development/python-modules/invocations/replace-blessings-with-blessed.patch
@@ -13,14 +13,14 @@ index 54322c3..81ac173 100644
  from invoke import Collection, task, Exit
 diff --git a/setup.py b/setup.py
 index 78ae28b..c78a74c 100644
---- a/setup.py
-+++ b/setup.py
-@@ -16,7 +16,7 @@ requirements = [
+--- a/pyproject.toml	2026-04-25 00:07:29.730867343 +0200
++++ b/pyproject.toml	2026-04-25 00:08:23.736953102 +0200
+@@ -16,7 +16,7 @@
      # time if missing), but that got hairy fast, and these are all
      # pure-Python packages, so it shouldn't be a huge burden for users to
      # obtain them.
 -    "blessings>=1.6",
 +    "blessed",
-     "releases>=1.6",
-     "semantic_version>=2.4,<2.7",
-     "tabulate>=0.7.5",
+     "build>=1.3",
+     # For envs that don't actually have pip - we use some of its tooling atm.
+     "pip~=25.2",