diff --git a/README.md b/README.md
index 60b8ca6..9c8796d 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ __Current support kits:__
 
 __Supported (tested) FPGA:__
 
-* Gowin [GW1N (GW1N-1, GW1NR-9)](https://www.gowinsemi.com/en/product/detail/2/) (SRAM and Flash (flash mode only tested with GW1NR-9))
+* Gowin [GW1N (GW1N-1, GW1N-4, GW1NR-9)](https://www.gowinsemi.com/en/product/detail/2/) (SRAM and Flash (flash mode only tested with GW1NR-9))
 * Lattice [MachXO3LF](http://www.latticesemi.com/en/Products/FPGAandCPLD/MachXO3.aspx) (SRAM and Flash)
 * Xilinx Artix 7 [xc7a35ti](https://www.xilinx.com/products/silicon-devices/fpga/artix-7.html) (memory and spi flash)
 * Intel Cyclone 10 LP [10CL025](https://www.intel.com/content/www/us/en/products/programmable/fpga/cyclone-10.html)