diff --git a/examples/openthread/ot_br/partitions.csv b/examples/openthread/ot_br/partitions.csv
index 084c4662e2..d18753121d 100644
--- a/examples/openthread/ot_br/partitions.csv
+++ b/examples/openthread/ot_br/partitions.csv
@@ -2,5 +2,5 @@
 # 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, 1400K,
+factory,    app,  factory,  0x10000, 1500K,
 ot_storage, data, 0x3a,            , 0x2000,