diff --git a/kscreenlocker-5.21.5.tar.xz b/kscreenlocker-5.21.5.tar.xz
deleted file mode 100644
index 3d335c7..0000000
--- a/kscreenlocker-5.21.5.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
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-size 117420
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deleted file mode 100644
index e821f34..0000000
--- a/kscreenlocker-5.21.5.tar.xz.sig
+++ /dev/null
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diff --git a/kscreenlocker-5.21.90.tar.xz b/kscreenlocker-5.21.90.tar.xz
new file mode 100644
index 0000000..a968b32
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+++ b/kscreenlocker-5.21.90.tar.xz
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+oid sha256:ca4af9ea72cdcb0942a4a94958f5572a8556c9210bac3866603d5978cb0e1447
+size 116528
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new file mode 100644
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diff --git a/kscreenlocker.changes b/kscreenlocker.changes
index c9cc2cc..2b9f076 100644
--- a/kscreenlocker.changes
+++ b/kscreenlocker.changes
@@ -1,3 +1,31 @@
+-------------------------------------------------------------------
+Thu May 13 18:15:32 UTC 2021 - Fabian Vogt <fabian@ritter-vogt.de>
+
+- Update to 5.21.90
+  * New feature release
+  * For more details please see:
+  * https://kde.org/announcements/plasma/5/5.21.90
+- Changes since 5.21.5:
+  * Migrate to KDECompilerSettings
+  * Ignore file
+  * Port Q_FOREACH too
+  * Use Q_EMIT here
+  * No need to unnecessarily delay KSldApp::lockScreenShown
+  * Eventually announce window as locked
+  * Port from GetSessionByPid (kde#433364)
+  * Put the kscreenlocker in the overlay layer
+  * Do not set QT_IM_MODULE=qtvirtualkeyboard on wayland
+  * wayland: Ensure that the greeter fills the entire screen
+  * Use LayerShellQt to implement on Wayland
+  * Add pre-commit hook for clang-format
+  * clang-tidy: Force braces around statements
+  * Add .git-blame-ignore-revs file
+  * Run clang-format
+  * Remove KDE_BINDIR definition
+  * Raise minimum CMake version to 3.16
+  * Fix valgrind warning on startup
+  * Use versionless Qt cmake target
+
 -------------------------------------------------------------------
 Tue May  4 14:15:39 UTC 2021 - Fabian Vogt <fabian@ritter-vogt.de>
 
diff --git a/kscreenlocker.spec b/kscreenlocker.spec
index 684e88e..47dc70e 100644
--- a/kscreenlocker.spec
+++ b/kscreenlocker.spec
@@ -20,19 +20,19 @@
 
 %bcond_without lang
 Name:           kscreenlocker
-Version:        5.21.5
+Version:        5.21.90
 Release:        0
 Summary:        Library and components for secure lock screen architecture
 License:        GPL-2.0-or-later
 Group:          System/GUI/KDE
 URL:            https://projects.kde.org/kscreenlocker
-Source:         https://download.kde.org/stable/plasma/%{version}/kscreenlocker-%{version}.tar.xz
+Source:         https://download.kde.org/unstable/plasma/%{version}/kscreenlocker-%{version}.tar.xz
 %if %{with lang}
-Source1:        https://download.kde.org/stable/plasma/%{version}/kscreenlocker-%{version}.tar.xz.sig
+Source1:        https://download.kde.org/unstable/plasma/%{version}/kscreenlocker-%{version}.tar.xz.sig
 Source2:        plasma.keyring
 %endif
 Source3:        kde
-BuildRequires:  cmake >= 2.8.12
+BuildRequires:  cmake >= 3.16
 BuildRequires:  extra-cmake-modules >= 1.8.0
 BuildRequires:  kf5-filesystem
 BuildRequires:  pam-devel
@@ -48,6 +48,7 @@ BuildRequires:  cmake(KF5TextWidgets) >= 5.15.0
 BuildRequires:  cmake(KF5Wayland)
 BuildRequires:  cmake(KF5WindowSystem) >= 5.15.0
 BuildRequires:  cmake(KF5XmlGui) >= 5.15.0
+BuildRequires:  cmake(LayerShellQt)
 BuildRequires:  cmake(Qt5Quick) >= 5.5.0
 BuildRequires:  cmake(Qt5QuickWidgets) >= 5.5.0
 BuildRequires:  cmake(Qt5Test) >= 5.5.0