diff --git a/examples/openthread/ot_br/partitions.csv b/examples/openthread/ot_br/partitions.csv
index 1da5005fac..46c7857278 100644
--- a/examples/openthread/ot_br/partitions.csv
+++ b/examples/openthread/ot_br/partitions.csv
@@ -2,4 +2,4 @@
 # Note: if you have increased the bootloader size, make sure to update the offsets to avoid overlap
 nvs,        data, nvs,      0x9000,  0x6000,
 phy_init,   data, phy,      0xf000,  0x1000,
-factory,    app,  factory,  0x10000, 1700K,
+factory,    app,  factory,  0x10000, 1800K,