diff --git a/setup.cfg b/setup.cfg
index 1e8d4eaa..308bb772 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -33,6 +33,7 @@ install_requires =
     mergedeep==1.3.4
     mediafile==0.12.0
     PyYAML==5.3.1
+    pyyaml-include==1.3.1
 
 [options.package_data]
 * = *.yaml