diff --git a/debian/postinst b/debian/postinst
index b9afda2e..f38a8c66 100644
--- a/debian/postinst
+++ b/debian/postinst
@@ -73,7 +73,7 @@ EOF
 			fi
 		fi
 
-		if dpkg --compare-versions "$2" 'lt' '3.3.4~'; then
+		if dpkg --compare-versions "$2" 'lt' '3.3.5~'; then
 			# ensure old locking is used by the daemon until a reboot happened
 			touch "/run/proxmox-backup/old-locking"
 		fi
diff --git a/debian/rules b/debian/rules
index 6e1844e1..a03fe11b 100755
--- a/debian/rules
+++ b/debian/rules
@@ -22,8 +22,6 @@ ifneq ("$(wildcard .repoid)","")
 endif
 
 %:
-	@echo "fix locking version in postinst"
-	false
 	dh $@ --with=bash-completion
 
 override_dh_auto_configure: