diff --git a/requirements.txt b/requirements.txt
index 50d7d55..3482c9e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,6 +6,7 @@ iniconfig==1.1.1
 isort==5.10.1
 lazy-object-proxy==1.7.1
 mccabe==0.7.0
+mido==1.2.10
 packaging==21.3
 platformdirs==2.5.2
 pluggy==1.0.0