diff --git a/requirements.txt b/requirements.txt
index dcbee422..3346b044 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-pydcs>=0.9.8
+pydcs>=0.9.9
 Pyside2>=5.13.0
 pyinstaller==3.6
 pyproj==2.6.1.post1