diff --git a/pkgs/development/python-modules/nethsm/default.nix b/pkgs/development/python-modules/nethsm/default.nix
index d67f4df89645..181bf074437e 100644
--- a/pkgs/development/python-modules/nethsm/default.nix
+++ b/pkgs/development/python-modules/nethsm/default.nix
@@ -3,10 +3,8 @@
   buildPythonPackage,
   certifi,
   cryptography,
-  docker,
   fetchFromGitHub,
-  flit-core,
-  podman,
+  poetry-core,
   pycryptodome,
   pytestCheckHook,
   python-dateutil,
@@ -16,19 +14,19 @@
 
 buildPythonPackage rec {
   pname = "nethsm";
-  version = "2.0.1";
+  version = "2.1.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "Nitrokey";
     repo = "nethsm-sdk-py";
     tag = "v${version}";
-    hash = "sha256-wqnyI6QmsBfQW7NbJrk92Ufw0+IFmc8/0ZsUp5XswYw=";
+    hash = "sha256-1bU3C8dlErDpHQIqsEabi92VPC91/wTNvZnx2dDHcmw=";
   };
 
   pythonRelaxDeps = true;
 
-  build-system = [ flit-core ];
+  build-system = [ poetry-core ];
 
   dependencies = [
     certifi
@@ -39,8 +37,6 @@ buildPythonPackage rec {
   ];
 
   nativeCheckInputs = [
-    docker
-    podman
     pycryptodome
     pytestCheckHook
   ];