diff --git a/pkgs/development/python-modules/flipr-api/default.nix b/pkgs/development/python-modules/flipr-api/default.nix
index 418c7cf42fef..1a53b46c4463 100644
--- a/pkgs/development/python-modules/flipr-api/default.nix
+++ b/pkgs/development/python-modules/flipr-api/default.nix
@@ -1,7 +1,6 @@
 { lib
 , buildPythonPackage
 , fetchFromGitHub
-, fetchpatch
 , poetry-core
 , requests-mock
 , pythonOlder
@@ -13,7 +12,7 @@
 
 buildPythonPackage rec {
   pname = "flipr-api";
-  version = "1.4.1";
+  version = "1.4.2";
   format = "pyproject";
 
   disabled = pythonOlder "3.6";
@@ -22,7 +21,7 @@ buildPythonPackage rec {
     owner = "cnico";
     repo = pname;
     rev = version;
-    sha256 = "00qkzr2g38fpa7ndnbfx9m4d50lmz0j74nkxif3amnkbl4m6l5vn";
+    sha256 = "sha256-/G92WkWUr3T5T7VVzMERFVmLDfLz6m9rlZLQZCBQbCI=";
   };
 
   nativeBuildInputs = [
@@ -40,17 +39,10 @@ buildPythonPackage rec {
     pytestCheckHook
   ];
 
-  patches = [
-    # Switch to poetry-core, https://github.com/cnico/flipr-api/pull/4
-    (fetchpatch {
-      name = "switch-to-poetry-core.patch";
-      url = "https://github.com/cnico/flipr-api/commit/f14be1dfd4f46d4d43d9ea47e51cafca3cc18e86.patch";
-      sha256 = "1fdi19cq21zcjx4g132k480yhi5y0x5qj2l0h8k5zky5cdxs58r6";
-    })
+  pythonImportsCheck = [
+    "flipr_api"
   ];
 
-  pythonImportsCheck = [ "flipr_api" ];
-
   meta = with lib; {
     description = "Python client for Flipr API";
     homepage = "https://github.com/cnico/flipr-api";