diff --git a/pkgs/applications/science/electronics/qfsm/default.nix b/pkgs/applications/science/electronics/qfsm/default.nix
deleted file mode 100644
index b2e3704cba70ffa..000000000000000
--- a/pkgs/applications/science/electronics/qfsm/default.nix
+++ /dev/null
@@ -1,28 +0,0 @@
-{ lib, stdenv, fetchurl, qt4, cmake, graphviz, pkg-config }:
-
-stdenv.mkDerivation rec {
-  pname = "qfsm";
-  version = "0.54.0";
-
-  src = fetchurl {
-    url = "mirror://sourceforge/qfsm/qfsm-${version}-Source.tar.bz2";
-    sha256 = "0rl7bc5cr29ng67yij4akciyid9z7npal812ys4c3m229vjvflrb";
-  };
-
-  nativeBuildInputs = [ cmake pkg-config ];
-  buildInputs = [ qt4 graphviz ];
-
-  patches = [
-    ./drop-hardcoded-prefix.patch
-    ./gcc6-fixes.patch
-  ];
-
-  hardeningDisable = [ "format" ];
-
-  meta = {
-    description = "Graphical editor for finite state machines";
-    homepage = "http://qfsm.sourceforge.net/";
-    license = lib.licenses.gpl3Plus;
-    platforms = lib.platforms.unix;
-  };
-}
diff --git a/pkgs/applications/science/electronics/qfsm/drop-hardcoded-prefix.patch b/pkgs/applications/science/electronics/qfsm/drop-hardcoded-prefix.patch
deleted file mode 100644
index 965d67ac5526b5d..000000000000000
--- a/pkgs/applications/science/electronics/qfsm/drop-hardcoded-prefix.patch
+++ /dev/null
@@ -1,20 +0,0 @@
-diff -ubrw qfsm-0.53.0-Source-orig/CMakeLists.txt qfsm-0.53.0-Source-new/CMakeLists.txt
---- qfsm-0.53.0-Source-orig/CMakeLists.txt	2012-11-11 20:13:01.935856229 +0100
-+++ qfsm-0.53.0-Source-new/CMakeLists.txt	2012-11-11 20:13:24.962930007 +0100
-@@ -406,10 +406,6 @@
- 
- 
- IF(UNIX AND NOT WIN32)
--  SET(CMAKE_INSTALL_PREFIX "/usr")
--ENDIF(UNIX AND NOT WIN32)
--
--IF(UNIX AND NOT WIN32)
-   ADD_DEFINITIONS(-DQFSM_LANGUAGE_DIR="${CMAKE_INSTALL_PREFIX}/share/qfsm/")
-   ADD_DEFINITIONS(-DQFSM_HELP_DIR="${CMAKE_INSTALL_PREFIX}/share/doc/qfsm/")
- ELSE(UNIX AND NOT WIN32)
-@@ -472,5 +468,3 @@
-     )
- 
- ENDIF(UNIX AND NOT WIN32)
--
--
diff --git a/pkgs/applications/science/electronics/qfsm/gcc6-fixes.patch b/pkgs/applications/science/electronics/qfsm/gcc6-fixes.patch
deleted file mode 100644
index 5cedc647639764a..000000000000000
--- a/pkgs/applications/science/electronics/qfsm/gcc6-fixes.patch
+++ /dev/null
@@ -1,20 +0,0 @@
---- qfsm-0.54.0-Source-orig/src/FileIO.cpp	2015-01-02 19:01:46.000000000 +0100
-+++ qfsm-0.54.0-Source/src/FileIO.cpp	2017-09-11 19:53:30.579488402 +0200
-@@ -1617,7 +1617,7 @@
-   QString ext;
- 
-   if (!imp)
--    return FALSE;
-+    return NULL;
- 
-   Project* p=NULL;
-   importdlg->setAcceptMode(QFileDialog::AcceptOpen);
-@@ -1641,7 +1641,7 @@
-   ifstream fin(act_importfile);
- 
-   if (!fin)
--    return FALSE;
-+    return NULL;
- 
-   emit setWaitCursor();
- 
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index a281cccf18b580a..929cbe89a83de64 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -1300,6 +1300,7 @@ mapAliases ({
   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
+  qfsm = throw "qfsm has been removed, because it depended on qt4"; # Added 2022-06-12
   qimageblitz = throw "qimageblitz has been removed from nixpkgs, because it depended on qt4 and was last updated upstream in 2007"; # Added 2022-06-12
   qmetro = throw "qmetro has been removed, because it does not support qt5 (well)"; # Added 2022-05-26
   qmidiroute = throw "qmidiroute has been removed, because it was unmaintained upstream"; # Added 2022-05-26
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 9d29b0d96c1a4d0..f22ad96b735620f 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -12976,8 +12976,6 @@ with pkgs;
 
   tweeny = callPackage ../development/libraries/tweeny { };
 
-  qfsm = callPackage ../applications/science/electronics/qfsm { };
-
   tkgate = callPackage ../applications/science/electronics/tkgate/1.x.nix { };
 
   tm = callPackage ../tools/system/tm { };