diff --git a/debian/changelog b/debian/changelog
index a3df142..26941c3 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -2,6 +2,7 @@
 
   [ Patrick Franz ]
   * New upstream release (5.21.5).
+  * Tighten inter-plasma B-Ds.
 
  -- Debian Qt/KDE Maintainers <debian-qt-kde@lists.debian.org>  Fri, 07 May 2021 19:26:24 +0200
 
diff --git a/debian/control b/debian/control
index 5a43b1d..38b3f30 100644
--- a/debian/control
+++ b/debian/control
@@ -41,7 +41,7 @@
                libxrandr-dev,
                pkg-config,
                pkg-kde-tools (>= 0.15.18~),
-               plasma-workspace-dev (>= 4:5.21.4~),
+               plasma-workspace-dev (>= 4:5.21.5~),
                qtbase5-dev (>= 5.15.0~)
 Standards-Version: 4.5.1
 Homepage: https://invent.kde.org/plasma/powerdevil