diff --git a/requirements.txt b/requirements.txt
index 9fbec5f..3559e63 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,3 +24,4 @@ frozendict==2.3.0
 protobuf<=3.20.*
 prometheus-client==0.13.1
 fsspec==2022.11.0
+PyMonad==2.4.0