diff --git a/requirements_dev.txt b/requirements_dev.txt
index f6413e5..c8d374a 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -8,7 +8,7 @@ opencv-python==3.3.0.9
 pillow==4.2.1
 pymodbus==1.3.2
 pyserial==3.4
-PyYAML==4.2b1
+PyYAML==6.0.1
 
 bumpversion==0.5.3
 wheel==0.29.0