diff --git a/openstan.desktop b/openstan.desktop
deleted file mode 100644
index 6b69de1..0000000
--- a/openstan.desktop
+++ /dev/null
@@ -1,12 +0,0 @@
-[Desktop Entry]
-Version=1.0
-Type=Application
-Name=openstan
-GenericName=Bank Statement Analyser
-Comment=Secure statement analysis — configurable, accurate, flexible & extendable
-Exec=openstan
-Icon=/usr/local/share/icons/hicolor/scalable/apps/openstan.svg
-Categories=Office;Finance;
-Keywords=bank;statement;pdf;analysis;finance;
-StartupNotify=true
-StartupWMClass=openstan
diff --git a/packaging/post-uninstall.sh b/packaging/post-uninstall.sh
index 77405d2..3b93ecb 100644
--- a/packaging/post-uninstall.sh
+++ b/packaging/post-uninstall.sh
@@ -1,9 +1,23 @@
 #!/bin/sh
 # Post-uninstall script for openstan RPM/DEB package.
 # Removes the .desktop entry and icon, then refreshes caches.
+#
+# On upgrade the new package's post-install.sh runs first, then this script
+# runs as part of removing the old package.  If any openstan-* versioned
+# directory still exists under /usr/lib, we are mid-upgrade and must not
+# tear down desktop integration — the new version handles that.
 
 set -e
 
+# If another openstan version directory exists with a valid binary,
+# this is an upgrade — skip cleanup.  The new package's post-install.sh
+# will handle desktop integration.
+for _d in /usr/lib/openstan-*; do
+    if [ -d "$_d/openstan" ] && [ -x "$_d/openstan/openstan" ]; then
+        exit 0
+    fi
+done
+
 rm -f /usr/bin/openstan
 rm -f /usr/share/applications/openstan.desktop
 rm -f /usr/share/icons/hicolor/scalable/apps/openstan.svg