diff --git a/tg.sh b/tg.sh
index 14721fb..2a611fc 100755
--- a/tg.sh
+++ b/tg.sh
@@ -2,6 +2,7 @@
 TELEGRAM_TOKEN=""
 PARSE_MODE="MarkdownV2"
 ESCAPE_ALL=false
+API_URL="https://api.telegram.org"
 
 # _escape_text(input_text)
 function _escape() {
@@ -38,32 +39,32 @@ function tg_send() {
 				 -F caption="$text" \
 				 -F parse_mode=$PARSE_MODE \
 				 -F $type_snake=$5 \
-			 	 "https://api.telegram.org/bot${TELEGRAM_TOKEN}/send${type}"
+			 	 "${API_URL}/bot${TELEGRAM_TOKEN}/send${type}"
 		else
 			curl -s \
 				 -F chat_id=$1 \
 				 -F caption="$text" \
 				 -F parse_mode=$PARSE_MODE \
 			 	 -F $type_snake=@$3 \
-			 	 "https://api.telegram.org/bot${TELEGRAM_TOKEN}/send${type}"
+			 	 "${API_URL}/bot${TELEGRAM_TOKEN}/send${type}"
 		fi
 	else
 		curl -s \
 			 -F chat_id=$1 \
 			 -F text="$text" \
 			 -F parse_mode=$PARSE_MODE \
-			 "https://api.telegram.org/bot${TELEGRAM_TOKEN}/sendMessage"
+			 "${API_URL}/bot${TELEGRAM_TOKEN}/sendMessage"
 	fi
 }
 
 # tg_get_me()
 function tg_get_me() {
-	curl -s "https://api.telegram.org/bot${TELEGRAM_TOKEN}/getMe"
+	curl -s "${API_URL}/bot${TELEGRAM_TOKEN}/getMe"
 }
 
 # tg_get_messages(offset, timeout)
 function _tg_get_updates() {
-	curl -s "https://api.telegram.org/bot${TELEGRAM_TOKEN}/getUpdates?offset=$1&timeout=p" | jq -c '.result[]'
+	curl -s "${API_URL}/bot${TELEGRAM_TOKEN}/getUpdates?offset=$1&timeout=p" | jq -c '.result[]'
 }
 
 function _on_msg() {