diff --git a/boards/nucleo_g0b1re.json b/boards/nucleo_g0b1re.json
index aa6f5f0..671c318 100644
--- a/boards/nucleo_g0b1re.json
+++ b/boards/nucleo_g0b1re.json
@@ -29,7 +29,7 @@
   "name": "ST Nucleo G0B1RE",
   "upload": {
     "maximum_ram_size": 147456,
-    "maximum_size": 262144,
+    "maximum_size": 524288,
     "protocol": "stlink",
     "protocols": [
       "blackmagic",