diff --git a/akonadi-contact.spec b/akonadi-contact.spec
index 70834fd..3de4e07 100644
--- a/akonadi-contact.spec
+++ b/akonadi-contact.spec
@@ -72,6 +72,7 @@ Group:          System/Libraries
 Requires:       akonadi-contact >= %{version}
 Obsoletes:      akonadi-socialutils
 Obsoletes:      akonadi-socialutils-devel
+Obsoletes:      kdepim-apps-libs <= 20.08.3
 
 %description -n libKF5AkonadiContact5
 This package provides a library used for handling personal contacts,
@@ -106,6 +107,7 @@ Requires:       cmake(KF5GrantleeTheme)
 Requires:       cmake(Qt5Widgets) >= 5.12.0
 Obsoletes:      akonadi-contacts-devel < %{version}
 Provides:       akonadi-contacts-devel = %{version}
+Obsoletes:      kdepim-apps-libs-devel <= 20.08.3
 
 %description devel
 This package contains all necessary include files and libraries needed