diff --git a/pkgs/development/libraries/qca2/default.nix b/pkgs/development/libraries/qca2/default.nix
deleted file mode 100644
index 42dcf1a87d36..000000000000
--- a/pkgs/development/libraries/qca2/default.nix
+++ /dev/null
@@ -1,35 +0,0 @@
-{ lib, stdenv, fetchurl, openssl, cmake, pkg-config, qt, darwin }:
-
-stdenv.mkDerivation rec {
-  pname = "qca";
-  version = "2.2.1";
-
-  src = fetchurl {
-    url = "http://download.kde.org/stable/qca/${version}/qca-${version}.tar.xz";
-    sha256 = "00kv1vsrc8fp556hm8s6yw3240vx3l4067q6vfxrb3gdwgcd45np";
-  };
-
-  nativeBuildInputs = [ cmake pkg-config ];
-  buildInputs = [ openssl qt ]
-    ++ lib.optional stdenv.isDarwin darwin.apple_sdk.frameworks.Security;
-
-  # tells CMake to use this CA bundle file if it is accessible
-  preConfigure = ''
-    export QC_CERTSTORE_PATH=/etc/ssl/certs/ca-certificates.crt
-  '';
-
-  # tricks CMake into using this CA bundle file if it is not accessible (in a sandbox)
-  cmakeFlags = [ "-Dqca_CERTSTORE=/etc/ssl/certs/ca-certificates.crt" ];
-
-  postPatch = ''
-    sed -i -e '1i cmake_policy(SET CMP0025 NEW)' CMakeLists.txt
-  '';
-
-  meta = with lib; {
-    description = "Qt Cryptographic Architecture";
-    license = "LGPL";
-    homepage = "http://delta.affinix.com/qca";
-    maintainers = [ maintainers.sander ];
-    platforms = platforms.unix;
-  };
-}
diff --git a/pkgs/development/libraries/qca2/libressl.patch b/pkgs/development/libraries/qca2/libressl.patch
deleted file mode 100644
index c9b0267f85d8..000000000000
--- a/pkgs/development/libraries/qca2/libressl.patch
+++ /dev/null
@@ -1,28 +0,0 @@
---- a/plugins/qca-ossl/qca-ossl.cpp	2015-12-02 09:34:25.810682094 +0000
-+++ b/plugins/qca-ossl/qca-ossl.cpp	2015-12-02 09:29:51.720392423 +0000
-@@ -5403,11 +5403,13 @@
- 			ctx = SSL_CTX_new(SSLv2_client_method());
- 			break;
- #endif
-+#ifndef OPENSSL_NO_SSL3
- 		case TLS::SSL_v3:
- 			ctx = SSL_CTX_new(SSLv3_client_method());
- 			break;
-+#endif
- 		case TLS::TLS_v1:
-+			ctx = SSL_CTX_new(SSLv23_client_method());
--			ctx = SSL_CTX_new(TLSv1_client_method());
- 			break;
- 		case TLS::DTLS_v1:
- 		default:
-@@ -7133,8 +7135,10 @@
- 			return new opensslInfoContext(this);
- 		else if ( type == "sha1" )
- 			return new opensslHashContext( EVP_sha1(), this, type);
-+#ifndef OPENSSL_NO_SHA0
- 		else if ( type == "sha0" )
- 			return new opensslHashContext( EVP_sha(), this, type);
-+#endif
- 		else if ( type == "ripemd160" )
- 			return new opensslHashContext( EVP_ripemd160(), this, type);
- #ifdef HAVE_OPENSSL_MD2
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 3d1eb0c2035a..f7e0a6fd87a3 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -1192,6 +1192,7 @@ mapAliases ({
 
   QmidiNet = throw "'QmidiNet' has been renamed to/replaced by 'qmidinet'"; # Converted to throw 2022-02-22
   qca-qt5 = throw "'qca-qt5' has been renamed to/replaced by 'libsForQt5.qca-qt5'"; # Converted to throw 2022-02-22
+  qca2 = throw "qca2 has been removed, because it depended on qt4"; # Added 2022-05-26
   qcsxcad = libsForQt5.qcsxcad; # Added 2020-11-05
   qflipper = qFlipper; # Added 2022-02-11
   qmk_firmware = throw "qmk_firmware has been removed because it was broken"; # Added 2021-04-02
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 4316d33fc10e..fb3a8de23630 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -20832,8 +20832,6 @@ with pkgs;
 
   qbs = libsForQt5.callPackage ../development/tools/build-managers/qbs { };
 
-  qca2 = callPackage ../development/libraries/qca2 { qt = qt4; };
-
   qimageblitz = callPackage ../development/libraries/qimageblitz {};
 
   qolibri = libsForQt5.callPackage ../applications/misc/qolibri { };