diff --git a/requirements.txt b/requirements.txt
index a60ca7ecbd7bfebc36f787dd6425b771587835b1..4a48e3de1ad782a2e988ed6a11bf604165d3a733 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,3 +2,4 @@ git+https://github.com/amaork/libi2c.git; platform_system == "linux"
 opcua
 numpy
 recordclass
+pyyaml