diff --git a/installation-linux-openwrt.md b/installation-linux-openwrt.md
index d765a89..ee6c839 100644
--- a/installation-linux-openwrt.md
+++ b/installation-linux-openwrt.md
@@ -26,20 +26,6 @@ opkg update
 opkg upgrade yggdrasil
 ```
 
-## Installing on OpenWrt 18.06 and below
-
-Officially, there is no package support on the OpenWrt 18.06, so you may have any problems.
-```
-opkg update
-opkg install http://downloads.openwrt.org/releases/packages-19.07/xxxxxx_xxx/packages/yggdrasil_x.x.x-x_xxxxxx_xxx.ipk
-```
-Where xxxxxx_xxx your architecture, and yggdrasil_x.x.x-x_xxxxxx_xxx.ipk name of package
-For example 
-```
-opkg install http://downloads.openwrt.org/releases/packages-19.07/mipsel_24kc/packages/yggdrasil_0.3.5-4_mipsel_24kc.ipk
-```
-This method does not guarantee a successful installation
-
 ## After installation
 
 Read the [OpenWrt platform page](platform-openwrt.md) page for information