diff --git a/Makefile b/Makefile
index 94f7de4..f46c2dc 100644
--- a/Makefile
+++ b/Makefile
@@ -13,6 +13,12 @@ TARGET = badgemagic-ch582
 OPT = -Os
 
 
+#######################################
+# Get current version
+#######################################
+VERSION_ABBR = $(shell git describe --abbrev=0 --tags)
+VERSION = $(shell git describe --tags --dirty)
+
 #######################################
 # paths
 #######################################
@@ -121,6 +127,7 @@ ifeq ($(DEBUG), 1)
 CFLAGS += -g -gdwarf-2 -DDEBUG=$(DEBUG)
 endif
 
+CFLAGS += -DVERSION='"$(VERSION)"' -DVERSION_ABBR='"$(VERSION_ABBR)"'
 
 # Generate dependency information
 CFLAGS += -MMD -MP
diff --git a/src/ble/profile/devinfo.c b/src/ble/profile/devinfo.c
index f29526d..d68aea4 100644
--- a/src/ble/profile/devinfo.c
+++ b/src/ble/profile/devinfo.c
@@ -5,14 +5,14 @@
 static const uint8_t    systemId_val[] = {0, 0, 0, 0, 0, 0, 0, 0};
 static const uint16_t   systemId_UUID = SYSTEM_ID_UUID;
 
-static const uint8_t    modelNumber_val[] = "B1144";
+static const uint8_t    modelNumber_val[] = "BM1144";
 static const uint16_t   modelNumber_UUID = MODEL_NUMBER_UUID;
 
 const uint16_t          serialNumber_UUID = SERIAL_NUMBER_UUID;
 static const uint8_t    serialNumber_val[] = "N/A";
 
 const uint16_t          firmwareRev_UUID = FIRMWARE_REV_UUID;
-static const uint8_t    firmwareRev_val[] = "v0.0.1";
+static const uint8_t    firmwareRev_val[] = VERSION;
 
 const uint16_t          hardwareRev_UUID = HARDWARE_REV_UUID;
 static const uint8_t    hardwareRev_val[] = "221028";
diff --git a/src/main.c b/src/main.c
index 4e13913..7ac2eda 100644
--- a/src/main.c
+++ b/src/main.c
@@ -412,7 +412,7 @@ static void disp_charging()
 		if (is_charging()) {
 			disp_bat_stt(blink ? percent : 0, 2, 2);
 			if (ani_xbm_next_frame(&fabm_xbm, fb, 16, 0) == 0) {
-				fb_puts("v0.1", 4, 16, 2); // TODO: get version from git tag
+				fb_puts(VERSION_ABBR, sizeof(VERSION_ABBR), 16, 2);
 				fb_putchar(' ', 40, 2);
 			}
 			blink = !blink;
diff --git a/src/usb/dev.c b/src/usb/dev.c
index fb28e43..78900c7 100644
--- a/src/usb/dev.c
+++ b/src/usb/dev.c
@@ -53,16 +53,23 @@ static uint16_t product_info[] = {
 	'M', 'a', 'g', 'i', 'c'
 };
 
-// TODO: auto update firmware version by CI here
 static uint16_t serial_number[] = {
-	47 * 2 | /* bLength */
+	(12 + sizeof(VERSION_ABBR) - 1) * 2 | /* bLength */
 	0x03 << 8, /* bDescriptorType */
 
 	/* bString */
-	'N', 'o', 't', ' ', 'y', 'e', 't', ' ',
-	'i', 'm', 'p', 'l', 'e', 'm', 'e', 'n', 't', 'e', 'd', '\n',
-	'P', 'R', 'E', 'S', 'S', ' ', 'A', 'L', 'T', '+', 'F', '4', ' ',
-	'T', 'O', ' ', 'C', 'O', 'N', 'T', 'I', 'N', 'U', 'E', '.'
+	'B', 'M', '1', '1', '4', '4', ' ',
+	'f', 'w', ':',' ',
+	/* vX.Y */
+	VERSION[0],
+	VERSION[1],
+	VERSION[2],
+	VERSION[3],
+	VERSION[4],
+	VERSION[5],
+	VERSION[6],
+	VERSION[7],
+	VERSION[8]
 };
 
 static void desc_dev(USB_SETUP_REQ *request)