diff --git a/step-14.12.3.tar.xz b/step-14.12.3.tar.xz
deleted file mode 100644
index be12152..0000000
--- a/step-14.12.3.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:34ac10544751dc0e83ae95cc1926119355dd9a740785d1177cbbf9b36411725e
-size 383384
diff --git a/step-15.04.0.tar.xz b/step-15.04.0.tar.xz
new file mode 100644
index 0000000..4141ec3
--- /dev/null
+++ b/step-15.04.0.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a068d2da353f531a1975abe871cb4478512c9015b21dadd661e88d4964fd84ba
+size 386512
diff --git a/step.changes b/step.changes
index cdcbfc1..c167748 100644
--- a/step.changes
+++ b/step.changes
@@ -1,3 +1,25 @@
+-------------------------------------------------------------------
+Sat Apr 11 13:54:11 UTC 2015 - tittiatcoke@gmail.com
+
+- Update to KDE Applications 15.04.0
+   * KDE Applications 15.04.0
+   * https://www.kde.org/announcements/announce-applications-15.04.0.php
+
+
+-------------------------------------------------------------------
+Sat Mar 21 18:55:35 UTC 2015 - tittiatcoke@gmail.com
+
+- Update to KDE Applications 15.03.95
+   * KDE Applications 15.04 RC
+
+
+-------------------------------------------------------------------
+Sun Mar  8 12:58:20 UTC 2015 - tittiatcoke@gmail.com
+
+- Update to KDE Applications 15.03.80
+   * KDE Applications 15.04 Beta
+
+
 -------------------------------------------------------------------
 Tue Mar  3 10:49:29 UTC 2015 - tittiatcoke@gmail.com
 
diff --git a/step.spec b/step.spec
index 8fed0a3..9919324 100644
--- a/step.spec
+++ b/step.spec
@@ -17,7 +17,7 @@
 
 
 Name:           step
-Version:        14.12.3
+Version:        15.04.0
 Release:        0
 Summary:        An interactive physics simulator
 License:        GPL-2.0+
@@ -26,14 +26,27 @@ Url:            http://edu.kde.org
 Source0:        %{name}-%{version}.tar.xz
 BuildRequires:  fdupes
 BuildRequires:  gsl-devel
-BuildRequires:  libeigen2-devel
-BuildRequires:  libkde4-devel
+BuildRequires:  update-desktop-files
+BuildRequires:  libeigen3-devel
 BuildRequires:  libqalculate-devel
+BuildRequires:  extra-cmake-modules
+BuildRequires:  kconfig-devel
+BuildRequires:  pkgconfig(Qt5Core)
+BuildRequires:  pkgconfig(Qt5Qml)
+BuildRequires:  pkgconfig(Qt5Quick)
+BuildRequires:  pkgconfig(Qt5Xml)
+BuildRequires:  pkgconfig(Qt5Svg)
+BuildRequires:  pkgconfig(Qt5OpenGL)
+BuildRequires:  pkgconfig(Qt5PrintSupport)
+BuildRequires:  pkgconfig(Qt5Test)
+BuildRequires:  khtml-devel
+BuildRequires:  kdelibs4support-devel
+BuildRequires:  knewstuff-devel
+BuildRequires:  kplotting-devel
 BuildRequires:  xz
-Provides:       kde4-step = 4.3.0
-Obsoletes:      kde4-step < 4.3.0
+Obsoletes:      %{name}5 < %{version}
+Provides:       %{name}5 = %{version}
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
-%kde4_runtime_requires
 
 %description
 Step is an interactive physical simulator. It works like this: you
@@ -51,26 +64,25 @@ only learn but feel how physics works !
 %ifarch ppc ppc64
 export RPM_OPT_FLAGS="%{optflags} -mminimal-toc"
 %endif
-  %cmake_kde4 -d build
+  %cmake_kf5 -d build
   %make_jobs
 
 %install
-  %kde4_makeinstall -C build
-  %suse_update_desktop_file %{name}      X-KDE-Edu-Teaching
-  %kde_post_install
+  %kf5_makeinstall -C build
+  %suse_update_desktop_file org.kde.%{name}      X-KDE-Edu-Teaching
   %fdupes -s %{buildroot}
 
 %files
 %defattr(-,root,root)
 %doc AUTHORS COPYING* ChangeLog README
-%doc %{_kde4_htmldir}/en/step/
-%dir %{_kde4_datadir}/appdata
-%{_kde4_applicationsdir}/step.desktop
-%{_kde4_appsdir}/step/
-%{_kde4_bindir}/step
-%{_kde4_configdir}/step.knsrc
-%{_kde4_configkcfgdir}/step.kcfg
-%{_kde4_datadir}/appdata/step.appdata.xml
-%{_kde4_iconsdir}/hicolor/*/apps/step.*
+%doc %{_kf5_htmldir}/en/step/
+%{_kf5_applicationsdir}/org.kde.step.desktop
+%{_kf5_appsdir}/step/
+%{_kf5_bindir}/step
+%{_kf5_configdir}/step.knsrc
+%dir %{_kf5_configkcfgdir}
+%{_kf5_configkcfgdir}/step.kcfg
+%{_datadir}/appdata/step.appdata.xml
+%{_kf5_iconsdir}/hicolor/*/*/*
 
 %changelog