diff --git a/include/package-pack.mk b/include/package-pack.mk
index 411bae825a9..d784d0ac3bb 100644
--- a/include/package-pack.mk
+++ b/include/package-pack.mk
@@ -110,12 +110,22 @@ endif
     IDIR_$(1):=$(PKG_BUILD_DIR)/ipkg-$(PKGARCH)/$(1)
     ADIR_$(1):=$(PKG_BUILD_DIR)/apk-$(PKGARCH)/$(1)
     KEEP_$(1):=$(strip $(call Package/$(1)/conffiles))
-    APK_SCRIPTS_$(1):=\
-    --script "post-install:$$(ADIR_$(1))/post-install" \
-    --script "pre-deinstall:$$(ADIR_$(1))/pre-deinstall"
 
+    APK_SCRIPTS_$(1):=
+
+    ifdef Package/$(1)/preinst
+      APK_SCRIPTS_$(1)+=--script "pre-install:$$(ADIR_$(1))/preinst"
+    endif
+    APK_SCRIPTS_$(1)+=--script "post-install:$$(ADIR_$(1))/post-install"
+
+    ifdef Package/$(1)/preinst
+      APK_SCRIPTS_$(1)+=--script "pre-upgrade:$$(ADIR_$(1))/pre-upgrade"
+    endif
+    APK_SCRIPTS_$(1)+=--script "post-upgrade:$$(ADIR_$(1))/post-upgrade"
+
+    APK_SCRIPTS_$(1)+=--script "pre-deinstall:$$(ADIR_$(1))/pre-deinstall"
     ifdef Package/$(1)/postrm
-        APK_SCRIPTS_$(1)+=--script "post-deinstall:$$(ADIR_$(1))/postrm"
+      APK_SCRIPTS_$(1)+=--script "post-deinstall:$$(ADIR_$(1))/postrm"
     endif
 
     TARGET_VARIANT:=$$(if $(ALL_VARIANTS),$$(if $$(VARIANT),$$(filter-out *,$$(VARIANT)),$(firstword $(ALL_VARIANTS))))
@@ -305,6 +315,20 @@ else
 		[ ! -f $$(ADIR_$(1))/postinst-pkg ] || sed -z 's/^\s*#!/#!/' "$$(ADIR_$(1))/postinst-pkg"; \
 	) > $$(ADIR_$(1))/post-install;
 
+    ifdef Package/$(1)/preinst
+	( \
+		echo "#!/bin/sh"; \
+		echo 'export PKG_UPGRADE=1'; \
+		[ ! -f $$(ADIR_$(1))/preinst ] || sed -z 's/^\s*#!/#!/' "$$(ADIR_$(1))/preinst"; \
+	) > $$(ADIR_$(1))/pre-upgrade;
+    endif
+
+	( \
+		echo "#!/bin/sh"; \
+		echo 'export PKG_UPGRADE=1'; \
+		[ ! -f $$(ADIR_$(1))/post-install ] || sed -z 's/^\s*#!/#!/' "$$(ADIR_$(1))/post-install"; \
+	) > $$(ADIR_$(1))/post-upgrade;
+
 	( \
 		echo "#!/bin/sh"; \
 		echo "[ -s "\$$$${IPKG_INSTROOT}/lib/functions.sh" ] || exit 0"; \