diff --git a/src/ble/ble_service.h b/src/ble/ble_service.h
index 2c1943a..16ec9b4 100644
--- a/src/ble/ble_service.h
+++ b/src/ble/ble_service.h
@@ -15,7 +15,7 @@
 #define APP_ADV_DURATION            60000   // 60000 x 10ms = 600s (10 min)
 
 #define BLE_MIN_CONN_INTERVAL       12      // 15ms / 1.25ms = 12
-#define BLE_MAX_CONN_INTERVAL       12      // 15ms / 1.25ms = 12
+#define BLE_MAX_CONN_INTERVAL       24      // 24ms / 1.25ms = 24
 #define BLE_SLAVE_LATENCY           0
 #define BLE_CONN_SUP_TIMEOUT        1000    // 10000ms / 10ms = 1000