diff --git a/src/hal/heltec.h b/src/hal/heltec.h
index 3546089e..e9b0198e 100644
--- a/src/hal/heltec.h
+++ b/src/hal/heltec.h
@@ -8,7 +8,7 @@
 #include <stdint.h>
 
 // Hardware related definitions for Heltec V1 LoRa-32 Board
-// see https://heltec-automation-docs.readthedocs.io/en/latest/esp32/wifi_lora_32/hardware_update_log.html#v1
+// see https://docs.heltec.org/en/node/esp32/dev-board/hardware_update_log.html#v1
 
 #define HAS_LORA 1 // comment out if device shall not send data via LoRa
 #define CFG_sx1276_radio 1
diff --git a/src/hal/heltecv2.h b/src/hal/heltecv2.h
index b047bdd8..937ac6a5 100644
--- a/src/hal/heltecv2.h
+++ b/src/hal/heltecv2.h
@@ -8,7 +8,7 @@
 #include <stdint.h>
 
 // Hardware related definitions for Heltec V2 LoRa-32 Board
-// see https://heltec-automation-docs.readthedocs.io/en/latest/esp32/wifi_lora_32/hardware_update_log.html#v2
+// see https://docs.heltec.org/en/node/esp32/dev-board/hardware_update_log.html#v2
 
 #define HAS_LORA 1       // comment out if device shall not send data via LoRa
 #define CFG_sx1276_radio 1
diff --git a/src/hal/heltecv21.h b/src/hal/heltecv21.h
index 9372325d..011e34c6 100644
--- a/src/hal/heltecv21.h
+++ b/src/hal/heltecv21.h
@@ -8,7 +8,7 @@
 #include <stdint.h>
 
 // Hardware related definitions for Heltec V2.1 LoRa-32 Board
-// see https://heltec-automation-docs.readthedocs.io/en/latest/esp32/wifi_lora_32/hardware_update_log.html#v2-1
+// see https://docs.heltec.org/en/node/esp32/dev-board/hardware_update_log.html#v2-1
 
 #define HAS_LORA 1       // comment out if device shall not send data via LoRa
 #define CFG_sx1276_radio 1