diff --git a/pkgs/development/tools/boomerang/default.nix b/pkgs/development/tools/boomerang/default.nix
index 6b9dd6393cb..f83353034a8 100644
--- a/pkgs/development/tools/boomerang/default.nix
+++ b/pkgs/development/tools/boomerang/default.nix
@@ -1,38 +1,43 @@
-{ stdenv, fetchgit, cmake, expat, qt5, boost }:
+{ stdenv, fetchFromGitHub, cmake, qtbase }:
 
 stdenv.mkDerivation rec {
   name = "boomerang-${version}";
-  version = "0.3.99-alpha-2016-11-02";
+  version = "0.4.0-alpha-2018-01-18";
 
-  src = fetchgit {
-    url = "https://github.com/nemerle/boomerang.git";
-    rev = "f95d6436845e9036c8cfbd936731449475f79b7a";
-    sha256 = "1q3q92lfj24ij5sxdbdhcqyan28r6db1w80yrks4csf9zjij1ixh";
+  src = fetchFromGitHub {
+    owner = "ceeac";
+    repo = "boomerang";
+    rev = "b4ff8d573407a8ed6365d4bfe53d2d47d983e393";
+    sha256 = "0x17vlm6y1paa49fi3pmzz7vzdqms19qkr274hkq32ql342b6i6x";
   };
 
-  buildInputs = [ cmake expat qt5.qtbase boost ];
-
-  patches = [ ./fix-install.patch ./fix-output.patch ];
-
-  postPatch = ''
-    substituteInPlace loader/BinaryFileFactory.cpp \
-      --replace '"lib"' '"../lib"'
-
-    substituteInPlace ui/DecompilerThread.cpp \
-      --replace '"output"' '"./output"'
-
-    substituteInPlace boomerang.cpp \
-      --replace 'progPath("./")' "progPath(\"$out/share/boomerang/\")"
-
-    substituteInPlace ui/commandlinedriver.cpp \
-      --replace "QFileInfo(args[0]).absolutePath()" "\"$out/share/boomerang/\""
+  nativeBuildInputs = [ cmake ];
+  buildInputs = [ qtbase ];
+
+  postPatch =
+  # Look in installation directory for required files, not relative to working directory
+  ''
+    substituteInPlace src/boomerang/core/Settings.cpp \
+      --replace "setDataDirectory(\"../share/boomerang\");" \
+                "setDataDirectory(\"$out/share/boomerang\");" \
+      --replace "setPluginDirectory(\"../lib/boomerang/plugins\");" \
+                "setPluginDirectory(\"$out/lib/boomerang/plugins\");"
+  ''
+  # Fixup version:
+  # * don't try to inspect with git
+  #   (even if we kept .git and such it would be "dirty" because of patching)
+  # * use date so version is monotonically increasing moving forward
+  + ''
+    sed -i cmake-scripts/boomerang-version.cmake \
+      -e 's/set(\(PROJECT\|BOOMERANG\)_VERSION ".*")/set(\1_VERSION "${version}")/'
   '';
 
   enableParallelBuilding = true;
 
-  meta = {
+  meta = with stdenv.lib; {
     homepage = http://boomerang.sourceforge.net/;
-    license = stdenv.lib.licenses.bsd3;
+    license = licenses.bsd3;
     description = "A general, open source, retargetable decompiler";
+    maintainers = with maintainers; [ dtzWill ];
   };
 }
diff --git a/pkgs/development/tools/boomerang/fix-install.patch b/pkgs/development/tools/boomerang/fix-install.patch
deleted file mode 100644
index bc656acfd6a..00000000000
--- a/pkgs/development/tools/boomerang/fix-install.patch
+++ /dev/null
@@ -1,48 +0,0 @@
-From 5851256422a4debc34c956439d8129a4d5f80722 Mon Sep 17 00:00:00 2001
-From: Will Dietz <w@wdtz.org>
-Date: Thu, 30 Mar 2017 10:06:03 -0500
-Subject: [PATCH] cmake: add install bits
-
----
- CMakeLists.txt        | 3 +++
- loader/CMakeLists.txt | 2 ++
- ui/CMakeLists.txt     | 2 ++
- 3 files changed, 7 insertions(+)
-
-diff --git a/CMakeLists.txt b/CMakeLists.txt
-index 826fe307..740861db 100644
---- a/CMakeLists.txt
-+++ b/CMakeLists.txt
-@@ -113,3 +113,6 @@ SET_PROPERTY(TARGET boom_base PROPERTY CXX_STANDARD_REQUIRED ON)
- 
- ADD_SUBDIRECTORY(loader)
- ADD_SUBDIRECTORY(ui)
-+
-+INSTALL(DIRECTORY signatures DESTINATION share/boomerang)
-+INSTALL(DIRECTORY frontend/machine DESTINATION share/boomerang/frontend)
-diff --git a/loader/CMakeLists.txt b/loader/CMakeLists.txt
-index b371d366..dcf715fd 100644
---- a/loader/CMakeLists.txt
-+++ b/loader/CMakeLists.txt
-@@ -6,6 +6,8 @@ macro(BOOMERANG_ADD_LOADER name)
-     endif()
-     qt5_use_modules(${target_name} Core)
-     set_target_properties(${target_name} PROPERTIES LIBRARY_OUTPUT_DIRECTORY "${PROJECT_SOURCE_DIR}/out/lib")
-+    install(TARGETS "${target_name}"
-+      LIBRARY DESTINATION lib)
- endmacro()
- 
- BOOMERANG_ADD_LOADER(Elf      elf/ElfBinaryFile.cpp elf/ElfBinaryFile.h)
-diff --git a/ui/CMakeLists.txt b/ui/CMakeLists.txt
-index f6fe3271..8729b522 100644
---- a/ui/CMakeLists.txt
-+++ b/ui/CMakeLists.txt
-@@ -26,3 +26,5 @@ boom_base frontend db type boomerang_DSLs codegen util boom_base
- ${CMAKE_THREAD_LIBS_INIT} boomerang_passes
- )
- qt5_use_modules(boomerang Core Xml Widgets)
-+
-+INSTALL(TARGETS boomerang DESTINATION bin)
--- 
-2.11.0
-
diff --git a/pkgs/development/tools/boomerang/fix-output.patch b/pkgs/development/tools/boomerang/fix-output.patch
deleted file mode 100644
index 18fbe74177b..00000000000
--- a/pkgs/development/tools/boomerang/fix-output.patch
+++ /dev/null
@@ -1,24 +0,0 @@
-From f3f5f888a1b1fe72ea8fc8cc96ef4ee386011e1c Mon Sep 17 00:00:00 2001
-From: Will Dietz <w@wdtz.org>
-Date: Thu, 30 Mar 2017 11:21:38 -0500
-Subject: [PATCH] don't default to writing to program directory
-
----
- boomerang.cpp | 1 -
- 1 file changed, 1 deletion(-)
-
-diff --git a/boomerang.cpp b/boomerang.cpp
-index 5951ed91..b592f482 100644
---- a/boomerang.cpp
-+++ b/boomerang.cpp
-@@ -601,7 +601,6 @@ int Boomerang::processCommand(QStringList &args) {
-  */
- void Boomerang::setProgPath(const QString &p) {
-     progPath = p + "/";
--    outputPath = progPath + "/output/"; // Default output path (can be overridden with -o below)
- }
- 
- /**
--- 
-2.11.0
-
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index e44e534b52c..dffab832a9d 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -813,7 +813,7 @@ with pkgs;
 
   borgbackup = callPackage ../tools/backup/borg { };
 
-  boomerang = callPackage ../development/tools/boomerang { };
+  boomerang = libsForQt5.callPackage ../development/tools/boomerang { };
 
   boost-build = callPackage ../development/tools/boost-build { };