diff --git a/requirements.txt b/requirements.txt
index 83e93432..a89fe3ee 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,4 +27,5 @@ ezdxf
 qrcode>=6.1
 reportlab>=3.5
 svglib
-gdal
\ No newline at end of file
+gdal
+pyserial>=3.4
\ No newline at end of file