diff --git a/extra-repos/systemd/drkonqi/APKBUILD b/extra-repos/systemd/drkonqi/APKBUILD
index 65c566e8c..437678ccc 100644
--- a/extra-repos/systemd/drkonqi/APKBUILD
+++ b/extra-repos/systemd/drkonqi/APKBUILD
@@ -4,7 +4,8 @@ pkgver=6.6.5
 pkgrel=0
 pkgdesc="The KDE crash handler"
 # armhf blocked by qt6-qtdeclarative -> ki18n
-arch="all !armhf"
+# riscv64: slow Alpine builders
+arch="all !armhf !riscv64"
 url="https://kde.org/plasma-desktop/"
 license="GPL-2.0-or-later"
 depends="
diff --git a/extra-repos/systemd/kscreenlocker/APKBUILD b/extra-repos/systemd/kscreenlocker/APKBUILD
index 42a093167..ef59bb71e 100644
--- a/extra-repos/systemd/kscreenlocker/APKBUILD
+++ b/extra-repos/systemd/kscreenlocker/APKBUILD
@@ -6,7 +6,8 @@ pkgver=9999$_pkgver
 pkgrel=0
 pkgdesc="Library and components for secure lock screen architecture"
 # armhf blocked by qt6-qtdeclarative -> ki18n
-arch="all !armhf"
+# riscv64: slow Alpine builders
+arch="all !armhf !riscv64"
 url="https://kde.org/plasma-desktop/"
 license="GPL-2.0-or-later AND (GPL-2.0-only OR GPL-3.0-only)"
 depends="linux-pam"
diff --git a/extra-repos/systemd/kwin/APKBUILD b/extra-repos/systemd/kwin/APKBUILD
index 5bddee871..3bfca62a8 100644
--- a/extra-repos/systemd/kwin/APKBUILD
+++ b/extra-repos/systemd/kwin/APKBUILD
@@ -6,7 +6,8 @@ pkgver=9999$_pkgver
 pkgrel=0
 pkgdesc="An easy to use, but flexible, composited Window Manager"
 # armhf blocked by qt6-qtdeclarative
-arch="all !armhf"
+# riscv64: slow Alpine builders
+arch="all !armhf !riscv64"
 url="https://kde.org/plasma-desktop/"
 license="GPL-2.0-or-later AND (GPL-2.0-only OR GPL-3.0-only) AND LGPL-2.1-only"
 depends="
diff --git a/extra-repos/systemd/plasma-login-manager/APKBUILD b/extra-repos/systemd/plasma-login-manager/APKBUILD
index 4d8526ea2..32575a423 100644
--- a/extra-repos/systemd/plasma-login-manager/APKBUILD
+++ b/extra-repos/systemd/plasma-login-manager/APKBUILD
@@ -6,7 +6,8 @@ pkgver=6.6.5
 pkgrel=0
 pkgdesc="A display manager for KDE Plasma"
 # armhf blocked by qt6-qtdeclarative
-arch="all !armhf"
+# riscv64: slow Alpine builders
+arch="all !armhf !riscv64"
 url="https://kde.org/plasma-desktop"
 license="GPL-2.0-or-later"
 makedepends="
diff --git a/extra-repos/systemd/plasma-workspace/APKBUILD b/extra-repos/systemd/plasma-workspace/APKBUILD
index 8f90ab7f0..b4f60ec33 100644
--- a/extra-repos/systemd/plasma-workspace/APKBUILD
+++ b/extra-repos/systemd/plasma-workspace/APKBUILD
@@ -6,7 +6,8 @@ pkgver=9999$_pkgver
 pkgrel=0
 pkgdesc="KDE Plasma Workspace"
 # armhf blocked by qt6-qtdeclarative
-arch="all !armhf"
+# riscv64: slow Alpine builders
+arch="all !armhf !riscv64"
 url="https://kde.org/plasma-desktop/"
 license="(GPL-2.0-only OR GPL-3.0-only) AND LGPL-2.1-or-later AND GPL-2.0-or-later AND MIT AND LGPL-2.1-only AND LGPL-2.0-or-later AND (LGPL-2.1-only OR LGPL-3.0-only) AND LGPL-2.0-only"
 depends="