diff --git a/sonnet-5.77.0.tar.xz b/sonnet-5.77.0.tar.xz
deleted file mode 100644
index 7f273d8..0000000
--- a/sonnet-5.77.0.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
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-oid sha256:d092461a6a86811ab749459cc2079903616d4f839e73762b60019b5454db9068
-size 294360
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deleted file mode 100644
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new file mode 100644
index 0000000..690a1cb
--- /dev/null
+++ b/sonnet-5.78.0.tar.xz
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+oid sha256:c2e70e96c66efa359b47c66937403089b11f6f9bf5406cb24f023809e70280cb
+size 294556
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new file mode 100644
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diff --git a/sonnet.changes b/sonnet.changes
index b6a71c3..55779bd 100644
--- a/sonnet.changes
+++ b/sonnet.changes
@@ -1,3 +1,17 @@
+-------------------------------------------------------------------
+Wed Jan  6 10:48:13 UTC 2021 - Christophe Giboudeaux <christophe@krop.fr>
+
+- Update to 5.78.0
+  * New feature release
+  * For more details please see:
+  * https://kde.org/announcements/kde-frameworks-5.78.0
+- Changes since 5.77.0:
+  * Remove not implemented method
+  * Fix build now that we require Qt 5.14
+  * Remove ifdefs, we require Qt 5.14 now
+  * Improve performance of createOrderedModel using QVector
+  * avoid runtime warning if no guess result exists
+
 -------------------------------------------------------------------
 Mon Dec  7 17:14:57 UTC 2020 - Christophe Giboudeaux <christophe@krop.fr>
 
diff --git a/sonnet.spec b/sonnet.spec
index 7efc1d1..0cfd4c2 100644
--- a/sonnet.spec
+++ b/sonnet.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package sonnet
 #
-# Copyright (c) 2020 SUSE LLC
+# Copyright (c) 2021 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -17,14 +17,14 @@
 
 
 %define sonum   5
-%define _tar_path 5.77
+%define _tar_path 5.78
 # Full KF5 version (e.g. 5.33.0)
 %{!?_kf5_version: %global _kf5_version %{version}}
 # Last major and minor KF5 version (e.g. 5.33)
 %{!?_kf5_bugfix_version: %define _kf5_bugfix_version %(echo %{_kf5_version} | awk -F. '{print $1"."$2}')}
 %bcond_without lang
 Name:           sonnet
-Version:        5.77.0
+Version:        5.78.0
 Release:        0
 Summary:        KDE spell checking library
 License:        LGPL-2.1-or-later
@@ -44,14 +44,14 @@ BuildRequires:  fdupes
 BuildRequires:  kf5-filesystem
 BuildRequires:  myspell-dictionaries
 BuildRequires:  pkgconfig
-BuildRequires:  cmake(Qt5Core) >= 5.13.0
-BuildRequires:  cmake(Qt5Test) >= 5.13.0
-BuildRequires:  cmake(Qt5UiPlugin) >= 5.13.0
-BuildRequires:  cmake(Qt5Widgets) >= 5.13.0
+BuildRequires:  cmake(Qt5Core) >= 5.14.0
+BuildRequires:  cmake(Qt5Test) >= 5.14.0
+BuildRequires:  cmake(Qt5UiPlugin) >= 5.14.0
+BuildRequires:  cmake(Qt5Widgets) >= 5.14.0
 BuildRequires:  pkgconfig(hunspell)
 BuildRequires:  pkgconfig(libvoikko)
 %if %{with lang}
-BuildRequires:  cmake(Qt5LinguistTools) >= 5.13.0
+BuildRequires:  cmake(Qt5LinguistTools) >= 5.14.0
 %endif
 
 %description
@@ -92,7 +92,7 @@ Group:          Development/Libraries/KDE
 Requires:       extra-cmake-modules
 Requires:       libKF5SonnetCore%{sonum} = %{version}
 Requires:       libKF5SonnetUi%{sonum} = %{version}
-Requires:       cmake(Qt5Core) >= 5.13.0
+Requires:       cmake(Qt5Core) >= 5.14.0
 
 %description devel
 Sonnet is a plugin-based spell checking library for Qt-based