diff --git a/pkgs/development/python-modules/python-picnic-api/default.nix b/pkgs/development/python-modules/python-picnic-api/default.nix
deleted file mode 100644
index 5267f99587c0..000000000000
--- a/pkgs/development/python-modules/python-picnic-api/default.nix
+++ /dev/null
@@ -1,32 +0,0 @@
-{
-  lib,
-  buildPythonPackage,
-  fetchPypi,
-  requests,
-}:
-
-buildPythonPackage rec {
-  pname = "python-picnic-api";
-  version = "1.1.0";
-  format = "setuptools";
-
-  src = fetchPypi {
-    inherit pname version;
-    sha256 = "1axqw4bs3wa9mdac35h7r25v3i5g7v55cvyy48c4sg31dxnr4wcp";
-  };
-
-  propagatedBuildInputs = [ requests ];
-
-  # Project doesn't ship tests
-  # https://github.com/MikeBrink/python-picnic-api/issues/13
-  doCheck = false;
-
-  pythonImportsCheck = [ "python_picnic_api" ];
-
-  meta = with lib; {
-    description = "Python wrapper for the Picnic API";
-    homepage = "https://github.com/MikeBrink/python-picnic-api";
-    license = with licenses; [ asl20 ];
-    maintainers = with maintainers; [ fab ];
-  };
-}
diff --git a/pkgs/top-level/python-aliases.nix b/pkgs/top-level/python-aliases.nix
index 1ddc78232539..5c9dc87970b7 100644
--- a/pkgs/top-level/python-aliases.nix
+++ b/pkgs/top-level/python-aliases.nix
@@ -519,6 +519,7 @@ mapAliases ({
   pynose = throw "pynose was removed, because it violates the license of nose, by redistributing modified LGPL code under MIT.";
   python-ethtool = ethtool; # added 2024-07-23
   python-myq = throw "python-myq has been removed, as the service provider has decided to block its API requests"; # added 2023-12-07
+  python-picnic-api = throw "python-picnic-api was removed because Home Assistant switched to python-picnic-api2"; # added 2025-03-05
   pytrends = throw "pytrends has been removed, as it no longer works and is abandoned upstream"; # added 2025-02-02
   pyqt4 = throw "pyqt4 has been removed, because it depended on the long EOL qt4"; # added 2022-06-09
   pyqt5_sip = pyqt5-sip; # added 2024-01-07
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 347b47bd98e3..1033c0c9b275 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -13616,8 +13616,6 @@ self: super: with self; {
 
   python-periphery = callPackage ../development/python-modules/python-periphery { };
 
-  python-picnic-api = callPackage ../development/python-modules/python-picnic-api { };
-
   python-picnic-api2 = callPackage ../development/python-modules/python-picnic-api2 { };
 
   python-pidfile = callPackage ../development/python-modules/python-pidfile { };