diff --git a/project/ble_peripheral/ble_app_bladder_patch/main.c b/project/ble_peripheral/ble_app_bladder_patch/main.c
index fb673d4..e06a402 100644
--- a/project/ble_peripheral/ble_app_bladder_patch/main.c
+++ b/project/ble_peripheral/ble_app_bladder_patch/main.c
@@ -140,8 +140,8 @@
 #define APP_ADV_DURATION_UNLIMITED      0                           /* Unintended disconnect: unlimited advertising */
 #define APP_ADV_DURATION                APP_ADV_DURATION_NORMAL     /* Default adv duration (changed at runtime by disconnect reason) */
 
-#define MIN_CONN_INTERVAL               MSEC_TO_UNITS(30, UNIT_1_25_MS)   /* Min connection interval: 30ms */
-#define MAX_CONN_INTERVAL               MSEC_TO_UNITS(30, UNIT_1_25_MS)   /* Max connection interval: 30ms */
+#define MIN_CONN_INTERVAL               MSEC_TO_UNITS(15, UNIT_1_25_MS)   /* Min connection interval: 15ms */
+#define MAX_CONN_INTERVAL               MSEC_TO_UNITS(15, UNIT_1_25_MS)   /* Max connection interval: 15ms */
 #define SLAVE_LATENCY                   0                                 /* Slave latency: 0 (respond every connection event) */
 #define CONN_SUP_TIMEOUT                MSEC_TO_UNITS(4000, UNIT_10_MS)   /* Connection supervision timeout: 4s */
 #define FIRST_CONN_PARAMS_UPDATE_DELAY  APP_TIMER_TICKS(5000)             /* Wait 5s before first param update request */