diff --git a/WHENCE b/WHENCE
index 73730972..8bc0245c 100644
--- a/WHENCE
+++ b/WHENCE
@@ -1867,6 +1867,8 @@ File: ti-connectivity/wl18xx-fw-2.bin
 Version: 8.5.0.0.55
 File: ti-connectivity/wl18xx-fw-3.bin
 Version: 8.8.0.0.13
+File: ti-connectivity/wl18xx-fw-4.bin
+Version: 8.9.0.0.17
 File: ti-connectivity/wl18xx-conf.bin
 Version: 6/5
 
diff --git a/ti-connectivity/wl18xx-fw-4.bin b/ti-connectivity/wl18xx-fw-4.bin
new file mode 100644
index 00000000..8369a9e9
Binary files /dev/null and b/ti-connectivity/wl18xx-fw-4.bin differ