diff --git a/sonnet-5.20.0.tar.xz b/sonnet-5.20.0.tar.xz
deleted file mode 100644
index e9672cb..0000000
--- a/sonnet-5.20.0.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:4308e18342d1823c0d039fad5f7c0febbf69d12cdd8fdd7e1d906f7639b79a1e
-size 281956
diff --git a/sonnet-5.21.0.tar.xz b/sonnet-5.21.0.tar.xz
new file mode 100644
index 0000000..54c9ff0
--- /dev/null
+++ b/sonnet-5.21.0.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8df561b781229f685d8707e7c766155e47d216d81d5b0ab234ba5180f2410b21
+size 282128
diff --git a/sonnet.changes b/sonnet.changes
index 463216b..9f6e9c5 100644
--- a/sonnet.changes
+++ b/sonnet.changes
@@ -1,3 +1,11 @@
+-------------------------------------------------------------------
+Mon Apr  4 14:31:48 UTC 2016 - hrvoje.senjan@gmail.com
+
+- Update to 5.21.0
+  * Upgrade Qt version requirement to 5.4.0
+  * For more details please see:
+    https://www.kde.org/announcements/kde-frameworks-5.21.0.php
+
 -------------------------------------------------------------------
 Sun Mar  6 10:05:07 UTC 2016 - hrvoje.senjan@gmail.com
 
diff --git a/sonnet.spec b/sonnet.spec
index 036b3c0..f669e5c 100644
--- a/sonnet.spec
+++ b/sonnet.spec
@@ -18,9 +18,9 @@
 
 %bcond_without lang
 %define sonum   5
-%define _tar_path 5.20
+%define _tar_path 5.21
 Name:           sonnet
-Version:        5.20.0
+Version:        5.21.0
 Release:        0
 #BuildRequires:  aspell-devel
 BuildRequires:  cmake >= 2.8.12
@@ -30,12 +30,12 @@ BuildRequires:  extra-cmake-modules >= %{_tar_path}
 BuildRequires:  fdupes
 BuildRequires:  kf5-filesystem
 %if %{with lang}
-BuildRequires:  cmake(Qt5LinguistTools) >= 5.3.0
+BuildRequires:  cmake(Qt5LinguistTools) >= 5.4.0
 %endif
 BuildRequires:  myspell-dictionaries
-BuildRequires:  cmake(Qt5Core) >= 5.3.0
-BuildRequires:  cmake(Qt5Test) >= 5.3.0
-BuildRequires:  cmake(Qt5Widgets) >= 5.3.0
+BuildRequires:  cmake(Qt5Core) >= 5.4.0
+BuildRequires:  cmake(Qt5Test) >= 5.4.0
+BuildRequires:  cmake(Qt5Widgets) >= 5.4.0
 BuildRequires:  pkgconfig(hunspell)
 Summary:        KDE spell checking library
 License:        LGPL-2.1+
@@ -82,7 +82,7 @@ Group:          Development/Libraries/KDE
 Requires:       extra-cmake-modules
 Requires:       libKF5SonnetCore%sonum = %{version}
 Requires:       libKF5SonnetUi%sonum = %{version}
-Requires:       cmake(Qt5Core) >= 5.3.0
+Requires:       cmake(Qt5Core) >= 5.4.0
 
 %description devel
 Sonnet is a plugin-based spell checking library for Qt-based