diff --git a/src/utility/ATT.cpp b/src/utility/ATT.cpp
index eaa58d35..26898988 100644
--- a/src/utility/ATT.cpp
+++ b/src/utility/ATT.cpp
@@ -111,7 +111,7 @@ bool ATTClass::connect(uint8_t peerBdaddrType, uint8_t peerBdaddr[6])
 {
   // original supervision timeout "0x00c8" seems to be too short for Nano 33 BLE (2 seconds)
   if (HCI.leCreateConn(0x0060, 0x0030, 0x00, peerBdaddrType, peerBdaddr, 0x00,
-                        0x0006, 0x000c, 0x0000, 1000, 0x0004, 0x0006) != 0) { 
+                        0x001c, 0x0020, 0x0000, 1000, 0x0004, 0x0006) != 0) { 
     return false;
   }