diff --git a/library.json b/library.json
index 96917e1..94e8453 100644
--- a/library.json
+++ b/library.json
@@ -9,5 +9,5 @@
   },
   "exclude": "doc",
   "frameworks": "arduino",
-  "platforms": "atmelavr"
+  "platforms": ["atmelavr", "ststm32"]
 }
diff --git a/library.properties b/library.properties
index 84137f6..9b26c35 100644
--- a/library.properties
+++ b/library.properties
@@ -7,4 +7,4 @@ sentence=Arduino RFID Library for MFRC522 (SPI)
 paragraph=Read/Write a RFID Card or Tag using the ISO/IEC 14443A/MIFARE interface.
 category=Communication
 url=https://github.com/miguelbalboa/rfid
-architectures=avr
+architectures=avr,STM32F1