diff --git a/requirements.txt b/requirements.txt
index c5d871329..448412ff6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,4 +7,5 @@ impacket
 # Generate QR Codes
 qrcode
 pillow
-pymssql
+# The pymssql project has been discontinued.
+pymssql<3.0