diff --git a/hts221/hts221_generic.go b/hts221/hts221_generic.go
index c9a93cd..a178959 100644
--- a/hts221/hts221_generic.go
+++ b/hts221/hts221_generic.go
@@ -1,3 +1,4 @@
+//go:build !nano_33_ble
 // +build !nano_33_ble
 
 package hts221
diff --git a/hts221/hts221_nano_33_ble.go b/hts221/hts221_nano_33_ble.go
index 7fb2e7b..ebd7794 100644
--- a/hts221/hts221_nano_33_ble.go
+++ b/hts221/hts221_nano_33_ble.go
@@ -1,3 +1,4 @@
+//go:build nano_33_ble
 // +build nano_33_ble
 
 package hts221